Home / 8,828.16-12,178.26-5,469.90

Finding the Fourth Proportional to 8,828.16, 12,178.26 and 5,469.90

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Solution

The fourth proportional to 8,828.16, 12,178.26 and 5,469.90 is: 7,545.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,828.16 : 12,178.26 = 5,469.90 : x
  2. Step 2: Convert to fraction form
    8,828.16/12,178.26 = 5,469.90/x
  3. Step 3: Cross multiply
    8,828.16x = 12,178.26 × 5,469.90
  4. Step 4: Simplify right side
    8,828.16x = 66,613,864.37
  5. Step 5: Solve for x
    x = 66,613,864.37/8,828.16
  6. Step 6: Final answer
    x = 7,545.61

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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.