Home / 16,821.52-25,242.72-11,423.68

Finding the Fourth Proportional to 16,821.52, 25,242.72 and 11,423.68

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Solution

The fourth proportional to 16,821.52, 25,242.72 and 11,423.68 is: 17,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.52 : 25,242.72 = 11,423.68 : x
  2. Step 2: Convert to fraction form
    16,821.52/25,242.72 = 11,423.68/x
  3. Step 3: Cross multiply
    16,821.52x = 25,242.72 × 11,423.68
  4. Step 4: Simplify right side
    16,821.52x = 288,364,755.61
  5. Step 5: Solve for x
    x = 288,364,755.61/16,821.52
  6. Step 6: Final answer
    x = 17,142.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.