Home / 8,545.14-12,796.29-5,415.66

Finding the Fourth Proportional to 8,545.14, 12,796.29 and 5,415.66

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Solution

The fourth proportional to 8,545.14, 12,796.29 and 5,415.66 is: 8,109.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.14 : 12,796.29 = 5,415.66 : x
  2. Step 2: Convert to fraction form
    8,545.14/12,796.29 = 5,415.66/x
  3. Step 3: Cross multiply
    8,545.14x = 12,796.29 × 5,415.66
  4. Step 4: Simplify right side
    8,545.14x = 69,300,355.90
  5. Step 5: Solve for x
    x = 69,300,355.90/8,545.14
  6. Step 6: Final answer
    x = 8,109.91

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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.