Home / 15,310.62-21,141.18-9,654.48

Finding the Fourth Proportional to 15,310.62, 21,141.18 and 9,654.48

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Solution

The fourth proportional to 15,310.62, 21,141.18 and 9,654.48 is: 13,331.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.62 : 21,141.18 = 9,654.48 : x
  2. Step 2: Convert to fraction form
    15,310.62/21,141.18 = 9,654.48/x
  3. Step 3: Cross multiply
    15,310.62x = 21,141.18 × 9,654.48
  4. Step 4: Simplify right side
    15,310.62x = 204,107,099.49
  5. Step 5: Solve for x
    x = 204,107,099.49/15,310.62
  6. Step 6: Final answer
    x = 13,331.08

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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.