Home / 8,715.31-12,024.47-4,937.87

Finding the Fourth Proportional to 8,715.31, 12,024.47 and 4,937.87

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Solution

The fourth proportional to 8,715.31, 12,024.47 and 4,937.87 is: 6,812.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.31 : 12,024.47 = 4,937.87 : x
  2. Step 2: Convert to fraction form
    8,715.31/12,024.47 = 4,937.87/x
  3. Step 3: Cross multiply
    8,715.31x = 12,024.47 × 4,937.87
  4. Step 4: Simplify right side
    8,715.31x = 59,375,244.99
  5. Step 5: Solve for x
    x = 59,375,244.99/8,715.31
  6. Step 6: Final answer
    x = 6,812.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.