Home / 8,560.14-12,839.79-2,715.99

Finding the Fourth Proportional to 8,560.14, 12,839.79 and 2,715.99

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Solution

The fourth proportional to 8,560.14, 12,839.79 and 2,715.99 is: 4,073.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.14 : 12,839.79 = 2,715.99 : x
  2. Step 2: Convert to fraction form
    8,560.14/12,839.79 = 2,715.99/x
  3. Step 3: Cross multiply
    8,560.14x = 12,839.79 × 2,715.99
  4. Step 4: Simplify right side
    8,560.14x = 34,872,741.24
  5. Step 5: Solve for x
    x = 34,872,741.24/8,560.14
  6. Step 6: Final answer
    x = 4,073.85

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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.