Home / 13,512.29-18,646.11-9,035.28

Finding the Fourth Proportional to 13,512.29, 18,646.11 and 9,035.28

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Solution

The fourth proportional to 13,512.29, 18,646.11 and 9,035.28 is: 12,468.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.29 : 18,646.11 = 9,035.28 : x
  2. Step 2: Convert to fraction form
    13,512.29/18,646.11 = 9,035.28/x
  3. Step 3: Cross multiply
    13,512.29x = 18,646.11 × 9,035.28
  4. Step 4: Simplify right side
    13,512.29x = 168,472,824.76
  5. Step 5: Solve for x
    x = 168,472,824.76/13,512.29
  6. Step 6: Final answer
    x = 12,468.12

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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.