Home / 10,134.90-15,128.27-9,403.16

Finding the Fourth Proportional to 10,134.90, 15,128.27 and 9,403.16

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Solution

The fourth proportional to 10,134.90, 15,128.27 and 9,403.16 is: 14,036.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,134.90 : 15,128.27 = 9,403.16 : x
  2. Step 2: Convert to fraction form
    10,134.90/15,128.27 = 9,403.16/x
  3. Step 3: Cross multiply
    10,134.90x = 15,128.27 × 9,403.16
  4. Step 4: Simplify right side
    10,134.90x = 142,253,420.68
  5. Step 5: Solve for x
    x = 142,253,420.68/10,134.90
  6. Step 6: Final answer
    x = 14,036.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.