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Finding the Fourth Proportional to 10,660.86, 15,993.18 and 5,124.24

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Solution

The fourth proportional to 10,660.86, 15,993.18 and 5,124.24 is: 7,687.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.86 : 15,993.18 = 5,124.24 : x
  2. Step 2: Convert to fraction form
    10,660.86/15,993.18 = 5,124.24/x
  3. Step 3: Cross multiply
    10,660.86x = 15,993.18 × 5,124.24
  4. Step 4: Simplify right side
    10,660.86x = 81,952,892.68
  5. Step 5: Solve for x
    x = 81,952,892.68/10,660.86
  6. Step 6: Final answer
    x = 7,687.27

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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.