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Finding the Fourth Proportional to 18,187.71, 27,290.88 and 10,702.14

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Solution

The fourth proportional to 18,187.71, 27,290.88 and 10,702.14 is: 16,058.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.71 : 27,290.88 = 10,702.14 : x
  2. Step 2: Convert to fraction form
    18,187.71/27,290.88 = 10,702.14/x
  3. Step 3: Cross multiply
    18,187.71x = 27,290.88 × 10,702.14
  4. Step 4: Simplify right side
    18,187.71x = 292,070,818.48
  5. Step 5: Solve for x
    x = 292,070,818.48/18,187.71
  6. Step 6: Final answer
    x = 16,058.69

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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.