Home / 18,326.26-27,490.50-5,179.62

Finding the Fourth Proportional to 18,326.26, 27,490.50 and 5,179.62

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Solution

The fourth proportional to 18,326.26, 27,490.50 and 5,179.62 is: 7,769.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.26 : 27,490.50 = 5,179.62 : x
  2. Step 2: Convert to fraction form
    18,326.26/27,490.50 = 5,179.62/x
  3. Step 3: Cross multiply
    18,326.26x = 27,490.50 × 5,179.62
  4. Step 4: Simplify right side
    18,326.26x = 142,390,343.61
  5. Step 5: Solve for x
    x = 142,390,343.61/18,326.26
  6. Step 6: Final answer
    x = 7,769.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.