Home / 10,715.43-16,073.91-3,318.94

Finding the Fourth Proportional to 10,715.43, 16,073.91 and 3,318.94

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Solution

The fourth proportional to 10,715.43, 16,073.91 and 3,318.94 is: 4,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,715.43 : 16,073.91 = 3,318.94 : x
  2. Step 2: Convert to fraction form
    10,715.43/16,073.91 = 3,318.94/x
  3. Step 3: Cross multiply
    10,715.43x = 16,073.91 × 3,318.94
  4. Step 4: Simplify right side
    10,715.43x = 53,348,342.86
  5. Step 5: Solve for x
    x = 53,348,342.86/10,715.43
  6. Step 6: Final answer
    x = 4,978.65

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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.