Home / 15,425.19-21,278.93-9,047.61

Finding the Fourth Proportional to 15,425.19, 21,278.93 and 9,047.61

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Solution

The fourth proportional to 15,425.19, 21,278.93 and 9,047.61 is: 12,481.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,425.19 : 21,278.93 = 9,047.61 : x
  2. Step 2: Convert to fraction form
    15,425.19/21,278.93 = 9,047.61/x
  3. Step 3: Cross multiply
    15,425.19x = 21,278.93 × 9,047.61
  4. Step 4: Simplify right side
    15,425.19x = 192,523,414.62
  5. Step 5: Solve for x
    x = 192,523,414.62/15,425.19
  6. Step 6: Final answer
    x = 12,481.10

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Double scale
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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.