Home / 15,942.57-22,000.68-8,868.99

Finding the Fourth Proportional to 15,942.57, 22,000.68 and 8,868.99

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Solution

The fourth proportional to 15,942.57, 22,000.68 and 8,868.99 is: 12,239.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,942.57 : 22,000.68 = 8,868.99 : x
  2. Step 2: Convert to fraction form
    15,942.57/22,000.68 = 8,868.99/x
  3. Step 3: Cross multiply
    15,942.57x = 22,000.68 × 8,868.99
  4. Step 4: Simplify right side
    15,942.57x = 195,123,810.91
  5. Step 5: Solve for x
    x = 195,123,810.91/15,942.57
  6. Step 6: Final answer
    x = 12,239.17

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1.5x scale

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.