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Finding the Fourth Proportional to 16,045.79, 22,144.07 and 8,972.06

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Solution

The fourth proportional to 16,045.79, 22,144.07 and 8,972.06 is: 12,381.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,045.79 : 22,144.07 = 8,972.06 : x
  2. Step 2: Convert to fraction form
    16,045.79/22,144.07 = 8,972.06/x
  3. Step 3: Cross multiply
    16,045.79x = 22,144.07 × 8,972.06
  4. Step 4: Simplify right side
    16,045.79x = 198,677,879.82
  5. Step 5: Solve for x
    x = 198,677,879.82/16,045.79
  6. Step 6: Final answer
    x = 12,381.93

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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.