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Finding the Fourth Proportional to 10,008.87, 15,008.21 and 3,342.97

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Solution

The fourth proportional to 10,008.87, 15,008.21 and 3,342.97 is: 5,012.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.87 : 15,008.21 = 3,342.97 : x
  2. Step 2: Convert to fraction form
    10,008.87/15,008.21 = 3,342.97/x
  3. Step 3: Cross multiply
    10,008.87x = 15,008.21 × 3,342.97
  4. Step 4: Simplify right side
    10,008.87x = 50,172,019.77
  5. Step 5: Solve for x
    x = 50,172,019.77/10,008.87
  6. Step 6: Final answer
    x = 5,012.75

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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.