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Finding the Fourth Proportional to 18,332.76, 27,510 and 7,240.56

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Solution

The fourth proportional to 18,332.76, 27,510 and 7,240.56 is: 10,865.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,332.76 : 27,510 = 7,240.56 : x
  2. Step 2: Convert to fraction form
    18,332.76/27,510 = 7,240.56/x
  3. Step 3: Cross multiply
    18,332.76x = 27,510 × 7,240.56
  4. Step 4: Simplify right side
    18,332.76x = 199,187,805.60
  5. Step 5: Solve for x
    x = 199,187,805.60/18,332.76
  6. Step 6: Final answer
    x = 10,865.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.