Home / 13,520.76-18,658.66-7,552.42

Finding the Fourth Proportional to 13,520.76, 18,658.66 and 7,552.42

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Solution

The fourth proportional to 13,520.76, 18,658.66 and 7,552.42 is: 10,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.76 : 18,658.66 = 7,552.42 : x
  2. Step 2: Convert to fraction form
    13,520.76/18,658.66 = 7,552.42/x
  3. Step 3: Cross multiply
    13,520.76x = 18,658.66 × 7,552.42
  4. Step 4: Simplify right side
    13,520.76x = 140,918,036.96
  5. Step 5: Solve for x
    x = 140,918,036.96/13,520.76
  6. Step 6: Final answer
    x = 10,422.35

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Half scale
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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.