Home / 13,251.47-18,287.24-7,586.19

Finding the Fourth Proportional to 13,251.47, 18,287.24 and 7,586.19

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Solution

The fourth proportional to 13,251.47, 18,287.24 and 7,586.19 is: 10,469.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.47 : 18,287.24 = 7,586.19 : x
  2. Step 2: Convert to fraction form
    13,251.47/18,287.24 = 7,586.19/x
  3. Step 3: Cross multiply
    13,251.47x = 18,287.24 × 7,586.19
  4. Step 4: Simplify right side
    13,251.47x = 138,730,439.28
  5. Step 5: Solve for x
    x = 138,730,439.28/13,251.47
  6. Step 6: Final answer
    x = 10,469.06

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Half scale
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Double scale
Find fourth proportional to 13,252.47, 18,288.62 and 7,587.19
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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.