Home / 18,286.17-25,234.76-9,902.67

Finding the Fourth Proportional to 18,286.17, 25,234.76 and 9,902.67

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Solution

The fourth proportional to 18,286.17, 25,234.76 and 9,902.67 is: 13,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.17 : 25,234.76 = 9,902.67 : x
  2. Step 2: Convert to fraction form
    18,286.17/25,234.76 = 9,902.67/x
  3. Step 3: Cross multiply
    18,286.17x = 25,234.76 × 9,902.67
  4. Step 4: Simplify right side
    18,286.17x = 249,891,374.64
  5. Step 5: Solve for x
    x = 249,891,374.64/18,286.17
  6. Step 6: Final answer
    x = 13,665.60

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Half scale
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Double scale
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Similar ratio
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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.