Home / 18,198.54-25,105.59-13,154.76

Finding the Fourth Proportional to 18,198.54, 25,105.59 and 13,154.76

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Solution

The fourth proportional to 18,198.54, 25,105.59 and 13,154.76 is: 18,147.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,198.54 : 25,105.59 = 13,154.76 : x
  2. Step 2: Convert to fraction form
    18,198.54/25,105.59 = 13,154.76/x
  3. Step 3: Cross multiply
    18,198.54x = 25,105.59 × 13,154.76
  4. Step 4: Simplify right side
    18,198.54x = 330,258,011.11
  5. Step 5: Solve for x
    x = 330,258,011.11/18,198.54
  6. Step 6: Final answer
    x = 18,147.50

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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.