Home / 8,537.14-12,811.50-2,990.53

Finding the Fourth Proportional to 8,537.14, 12,811.50 and 2,990.53

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Solution

The fourth proportional to 8,537.14, 12,811.50 and 2,990.53 is: 4,487.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,537.14 : 12,811.50 = 2,990.53 : x
  2. Step 2: Convert to fraction form
    8,537.14/12,811.50 = 2,990.53/x
  3. Step 3: Cross multiply
    8,537.14x = 12,811.50 × 2,990.53
  4. Step 4: Simplify right side
    8,537.14x = 38,313,175.10
  5. Step 5: Solve for x
    x = 38,313,175.10/8,537.14
  6. Step 6: Final answer
    x = 4,487.82

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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.