Home / 16,402.20-22,638.13-10,272.75

Finding the Fourth Proportional to 16,402.20, 22,638.13 and 10,272.75

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Solution

The fourth proportional to 16,402.20, 22,638.13 and 10,272.75 is: 14,178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,402.20 : 22,638.13 = 10,272.75 : x
  2. Step 2: Convert to fraction form
    16,402.20/22,638.13 = 10,272.75/x
  3. Step 3: Cross multiply
    16,402.20x = 22,638.13 × 10,272.75
  4. Step 4: Simplify right side
    16,402.20x = 232,555,849.96
  5. Step 5: Solve for x
    x = 232,555,849.96/16,402.20
  6. Step 6: Final answer
    x = 14,178.33

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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.