Home / 11,459.25-15,810.21-6,422.77

Finding the Fourth Proportional to 11,459.25, 15,810.21 and 6,422.77

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Solution

The fourth proportional to 11,459.25, 15,810.21 and 6,422.77 is: 8,861.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,459.25 : 15,810.21 = 6,422.77 : x
  2. Step 2: Convert to fraction form
    11,459.25/15,810.21 = 6,422.77/x
  3. Step 3: Cross multiply
    11,459.25x = 15,810.21 × 6,422.77
  4. Step 4: Simplify right side
    11,459.25x = 101,545,302.96
  5. Step 5: Solve for x
    x = 101,545,302.96/11,459.25
  6. Step 6: Final answer
    x = 8,861.43

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.