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Finding the Fourth Proportional to 18,085.71, 27,146.10 and 8,732.33

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Solution

The fourth proportional to 18,085.71, 27,146.10 and 8,732.33 is: 13,106.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,085.71 : 27,146.10 = 8,732.33 : x
  2. Step 2: Convert to fraction form
    18,085.71/27,146.10 = 8,732.33/x
  3. Step 3: Cross multiply
    18,085.71x = 27,146.10 × 8,732.33
  4. Step 4: Simplify right side
    18,085.71x = 237,048,567.68
  5. Step 5: Solve for x
    x = 237,048,567.68/18,085.71
  6. Step 6: Final answer
    x = 13,106.95

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1.5x scale

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.