Home / 16,045.88-22,143.36-8,972.42

Finding the Fourth Proportional to 16,045.88, 22,143.36 and 8,972.42

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Solution

The fourth proportional to 16,045.88, 22,143.36 and 8,972.42 is: 12,381.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,045.88 : 22,143.36 = 8,972.42 : x
  2. Step 2: Convert to fraction form
    16,045.88/22,143.36 = 8,972.42/x
  3. Step 3: Cross multiply
    16,045.88x = 22,143.36 × 8,972.42
  4. Step 4: Simplify right side
    16,045.88x = 198,679,526.13
  5. Step 5: Solve for x
    x = 198,679,526.13/16,045.88
  6. Step 6: Final answer
    x = 12,381.97

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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.