Home / 18,174.69-25,082.39-11,102.45

Finding the Fourth Proportional to 18,174.69, 25,082.39 and 11,102.45

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Solution

The fourth proportional to 18,174.69, 25,082.39 and 11,102.45 is: 15,322.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,174.69 : 25,082.39 = 11,102.45 : x
  2. Step 2: Convert to fraction form
    18,174.69/25,082.39 = 11,102.45/x
  3. Step 3: Cross multiply
    18,174.69x = 25,082.39 × 11,102.45
  4. Step 4: Simplify right side
    18,174.69x = 278,475,883.20
  5. Step 5: Solve for x
    x = 278,475,883.20/18,174.69
  6. Step 6: Final answer
    x = 15,322.18

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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.