Home / 13,502.40-20,265.60-7,948.80

Finding the Fourth Proportional to 13,502.40, 20,265.60 and 7,948.80

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Solution

The fourth proportional to 13,502.40, 20,265.60 and 7,948.80 is: 11,930.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,502.40 : 20,265.60 = 7,948.80 : x
  2. Step 2: Convert to fraction form
    13,502.40/20,265.60 = 7,948.80/x
  3. Step 3: Cross multiply
    13,502.40x = 20,265.60 × 7,948.80
  4. Step 4: Simplify right side
    13,502.40x = 161,087,201.28
  5. Step 5: Solve for x
    x = 161,087,201.28/13,502.40
  6. Step 6: Final answer
    x = 11,930.26

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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.