Home / 12,457,517.40-18,686,276.10-11,261,775.15

Finding the Fourth Proportional to 12,457,517.40, 18,686,276.10 and 11,261,775.15

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Solution

The fourth proportional to 12,457,517.40, 18,686,276.10 and 11,261,775.15 is: 16,892,662.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,517.40 : 18,686,276.10 = 11,261,775.15 : x
  2. Step 2: Convert to fraction form
    12,457,517.40/18,686,276.10 = 11,261,775.15/x
  3. Step 3: Cross multiply
    12,457,517.40x = 18,686,276.10 × 11,261,775.15
  4. Step 4: Simplify right side
    12,457,517.40x = 210,440,639,829,018.94
  5. Step 5: Solve for x
    x = 210,440,639,829,018.94/12,457,517.40
  6. Step 6: Final answer
    x = 16,892,662.73

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.