Home / 9,129.16-12,597.50-5,351.86

Finding the Fourth Proportional to 9,129.16, 12,597.50 and 5,351.86

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Solution

The fourth proportional to 9,129.16, 12,597.50 and 5,351.86 is: 7,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.16 : 12,597.50 = 5,351.86 : x
  2. Step 2: Convert to fraction form
    9,129.16/12,597.50 = 5,351.86/x
  3. Step 3: Cross multiply
    9,129.16x = 12,597.50 × 5,351.86
  4. Step 4: Simplify right side
    9,129.16x = 67,419,966.60
  5. Step 5: Solve for x
    x = 67,419,966.60/9,129.16
  6. Step 6: Final answer
    x = 7,385.13

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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.