Home / 10,715.79-16,057.14-5,442.80

Finding the Fourth Proportional to 10,715.79, 16,057.14 and 5,442.80

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Solution

The fourth proportional to 10,715.79, 16,057.14 and 5,442.80 is: 8,155.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,715.79 : 16,057.14 = 5,442.80 : x
  2. Step 2: Convert to fraction form
    10,715.79/16,057.14 = 5,442.80/x
  3. Step 3: Cross multiply
    10,715.79x = 16,057.14 × 5,442.80
  4. Step 4: Simplify right side
    10,715.79x = 87,395,700.90
  5. Step 5: Solve for x
    x = 87,395,700.90/10,715.79
  6. Step 6: Final answer
    x = 8,155.78

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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.