Home / 9,715.72-14,551.68-5,811.92

Finding the Fourth Proportional to 9,715.72, 14,551.68 and 5,811.92

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Solution

The fourth proportional to 9,715.72, 14,551.68 and 5,811.92 is: 8,704.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,715.72 : 14,551.68 = 5,811.92 : x
  2. Step 2: Convert to fraction form
    9,715.72/14,551.68 = 5,811.92/x
  3. Step 3: Cross multiply
    9,715.72x = 14,551.68 × 5,811.92
  4. Step 4: Simplify right side
    9,715.72x = 84,573,200.03
  5. Step 5: Solve for x
    x = 84,573,200.03/9,715.72
  6. Step 6: Final answer
    x = 8,704.78

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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.