Home / 13,522.28-18,660.08-7,552.76

Finding the Fourth Proportional to 13,522.28, 18,660.08 and 7,552.76

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Solution

The fourth proportional to 13,522.28, 18,660.08 and 7,552.76 is: 10,422.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.28 : 18,660.08 = 7,552.76 : x
  2. Step 2: Convert to fraction form
    13,522.28/18,660.08 = 7,552.76/x
  3. Step 3: Cross multiply
    13,522.28x = 18,660.08 × 7,552.76
  4. Step 4: Simplify right side
    13,522.28x = 140,935,105.82
  5. Step 5: Solve for x
    x = 140,935,105.82/13,522.28
  6. Step 6: Final answer
    x = 10,422.44

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Half scale
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Double scale
Find fourth proportional to 13,523.28, 18,661.46 and 7,553.76
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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.