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Finding the Fourth Proportional to 15,098.81, 20,812.11 and 10,252.02

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Solution

The fourth proportional to 15,098.81, 20,812.11 and 10,252.02 is: 14,131.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,098.81 : 20,812.11 = 10,252.02 : x
  2. Step 2: Convert to fraction form
    15,098.81/20,812.11 = 10,252.02/x
  3. Step 3: Cross multiply
    15,098.81x = 20,812.11 × 10,252.02
  4. Step 4: Simplify right side
    15,098.81x = 213,366,177.00
  5. Step 5: Solve for x
    x = 213,366,177.00/15,098.81
  6. Step 6: Final answer
    x = 14,131.33

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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.