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Finding the Fourth Proportional to 10,008.70, 15,000.27 and 4,743.70

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Solution

The fourth proportional to 10,008.70, 15,000.27 and 4,743.70 is: 7,109.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.70 : 15,000.27 = 4,743.70 : x
  2. Step 2: Convert to fraction form
    10,008.70/15,000.27 = 4,743.70/x
  3. Step 3: Cross multiply
    10,008.70x = 15,000.27 × 4,743.70
  4. Step 4: Simplify right side
    10,008.70x = 71,156,780.80
  5. Step 5: Solve for x
    x = 71,156,780.80/10,008.70
  6. Step 6: Final answer
    x = 7,109.49

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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.