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Finding the Fourth Proportional to 9,192.78, 12,686.11 and 5,001.02

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Solution

The fourth proportional to 9,192.78, 12,686.11 and 5,001.02 is: 6,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,192.78 : 12,686.11 = 5,001.02 : x
  2. Step 2: Convert to fraction form
    9,192.78/12,686.11 = 5,001.02/x
  3. Step 3: Cross multiply
    9,192.78x = 12,686.11 × 5,001.02
  4. Step 4: Simplify right side
    9,192.78x = 63,443,489.83
  5. Step 5: Solve for x
    x = 63,443,489.83/9,192.78
  6. Step 6: Final answer
    x = 6,901.45

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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.