Home / 18,458.38-25,484.79-11,395.18

Finding the Fourth Proportional to 18,458.38, 25,484.79 and 11,395.18

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Solution

The fourth proportional to 18,458.38, 25,484.79 and 11,395.18 is: 15,732.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.38 : 25,484.79 = 11,395.18 : x
  2. Step 2: Convert to fraction form
    18,458.38/25,484.79 = 11,395.18/x
  3. Step 3: Cross multiply
    18,458.38x = 25,484.79 × 11,395.18
  4. Step 4: Simplify right side
    18,458.38x = 290,403,769.31
  5. Step 5: Solve for x
    x = 290,403,769.31/18,458.38
  6. Step 6: Final answer
    x = 15,732.90

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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.