Home / 8,342.48-11,545.80-7,167.44

Finding the Fourth Proportional to 8,342.48, 11,545.80 and 7,167.44

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Solution

The fourth proportional to 8,342.48, 11,545.80 and 7,167.44 is: 9,919.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.48 : 11,545.80 = 7,167.44 : x
  2. Step 2: Convert to fraction form
    8,342.48/11,545.80 = 7,167.44/x
  3. Step 3: Cross multiply
    8,342.48x = 11,545.80 × 7,167.44
  4. Step 4: Simplify right side
    8,342.48x = 82,753,828.75
  5. Step 5: Solve for x
    x = 82,753,828.75/8,342.48
  6. Step 6: Final answer
    x = 9,919.57

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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.