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Finding the Fourth Proportional to 16,424.80, 22,666.21 and 8,871.12

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Solution

The fourth proportional to 16,424.80, 22,666.21 and 8,871.12 is: 12,242.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,424.80 : 22,666.21 = 8,871.12 : x
  2. Step 2: Convert to fraction form
    16,424.80/22,666.21 = 8,871.12/x
  3. Step 3: Cross multiply
    16,424.80x = 22,666.21 × 8,871.12
  4. Step 4: Simplify right side
    16,424.80x = 201,074,725.52
  5. Step 5: Solve for x
    x = 201,074,725.52/16,424.80
  6. Step 6: Final answer
    x = 12,242.15

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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.