Home / 14,513.92-21,780.59-5,279.92

Finding the Fourth Proportional to 14,513.92, 21,780.59 and 5,279.92

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Solution

The fourth proportional to 14,513.92, 21,780.59 and 5,279.92 is: 7,923.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,513.92 : 21,780.59 = 5,279.92 : x
  2. Step 2: Convert to fraction form
    14,513.92/21,780.59 = 5,279.92/x
  3. Step 3: Cross multiply
    14,513.92x = 21,780.59 × 5,279.92
  4. Step 4: Simplify right side
    14,513.92x = 114,999,691.90
  5. Step 5: Solve for x
    x = 114,999,691.90/14,513.92
  6. Step 6: Final answer
    x = 7,923.41

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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.