Home / 19,176.72-28,752.66-7,491.12

Finding the Fourth Proportional to 19,176.72, 28,752.66 and 7,491.12

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Solution

The fourth proportional to 19,176.72, 28,752.66 and 7,491.12 is: 11,231.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,176.72 : 28,752.66 = 7,491.12 : x
  2. Step 2: Convert to fraction form
    19,176.72/28,752.66 = 7,491.12/x
  3. Step 3: Cross multiply
    19,176.72x = 28,752.66 × 7,491.12
  4. Step 4: Simplify right side
    19,176.72x = 215,389,626.38
  5. Step 5: Solve for x
    x = 215,389,626.38/19,176.72
  6. Step 6: Final answer
    x = 11,231.83

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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.