Home / 18,319.28-27,484.07-5,171.76

Finding the Fourth Proportional to 18,319.28, 27,484.07 and 5,171.76

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Solution

The fourth proportional to 18,319.28, 27,484.07 and 5,171.76 is: 7,759.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.28 : 27,484.07 = 5,171.76 : x
  2. Step 2: Convert to fraction form
    18,319.28/27,484.07 = 5,171.76/x
  3. Step 3: Cross multiply
    18,319.28x = 27,484.07 × 5,171.76
  4. Step 4: Simplify right side
    18,319.28x = 142,141,013.86
  5. Step 5: Solve for x
    x = 142,141,013.86/18,319.28
  6. Step 6: Final answer
    x = 7,759.09

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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.