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Finding the Fourth Proportional to 10,008.74, 15,006.19 and 7,199.31

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Solution

The fourth proportional to 10,008.74, 15,006.19 and 7,199.31 is: 10,793.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.74 : 15,006.19 = 7,199.31 : x
  2. Step 2: Convert to fraction form
    10,008.74/15,006.19 = 7,199.31/x
  3. Step 3: Cross multiply
    10,008.74x = 15,006.19 × 7,199.31
  4. Step 4: Simplify right side
    10,008.74x = 108,034,118.64
  5. Step 5: Solve for x
    x = 108,034,118.64/10,008.74
  6. Step 6: Final answer
    x = 10,793.98

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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.