Home / 15,419.62-21,279.25-9,046.32

Finding the Fourth Proportional to 15,419.62, 21,279.25 and 9,046.32

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Solution

The fourth proportional to 15,419.62, 21,279.25 and 9,046.32 is: 12,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.62 : 21,279.25 = 9,046.32 : x
  2. Step 2: Convert to fraction form
    15,419.62/21,279.25 = 9,046.32/x
  3. Step 3: Cross multiply
    15,419.62x = 21,279.25 × 9,046.32
  4. Step 4: Simplify right side
    15,419.62x = 192,498,995.97
  5. Step 5: Solve for x
    x = 192,498,995.97/15,419.62
  6. Step 6: Final answer
    x = 12,484.03

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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.