Home / 12,505.40-18,760.15-5,928

Finding the Fourth Proportional to 12,505.40, 18,760.15 and 5,928

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Solution

The fourth proportional to 12,505.40, 18,760.15 and 5,928 is: 8,892.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.40 : 18,760.15 = 5,928 : x
  2. Step 2: Convert to fraction form
    12,505.40/18,760.15 = 5,928/x
  3. Step 3: Cross multiply
    12,505.40x = 18,760.15 × 5,928
  4. Step 4: Simplify right side
    12,505.40x = 111,210,169.20
  5. Step 5: Solve for x
    x = 111,210,169.20/12,505.40
  6. Step 6: Final answer
    x = 8,892.97

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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.