Home / 12,457.40-18,693.84-4,671.68

Finding the Fourth Proportional to 12,457.40, 18,693.84 and 4,671.68

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Solution

The fourth proportional to 12,457.40, 18,693.84 and 4,671.68 is: 7,010.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.40 : 18,693.84 = 4,671.68 : x
  2. Step 2: Convert to fraction form
    12,457.40/18,693.84 = 4,671.68/x
  3. Step 3: Cross multiply
    12,457.40x = 18,693.84 × 4,671.68
  4. Step 4: Simplify right side
    12,457.40x = 87,331,638.45
  5. Step 5: Solve for x
    x = 87,331,638.45/12,457.40
  6. Step 6: Final answer
    x = 7,010.42

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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.