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Finding the Fourth Proportional to 8,802.86, 12,149.10 and 5,668.16

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Solution

The fourth proportional to 8,802.86, 12,149.10 and 5,668.16 is: 7,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,802.86 : 12,149.10 = 5,668.16 : x
  2. Step 2: Convert to fraction form
    8,802.86/12,149.10 = 5,668.16/x
  3. Step 3: Cross multiply
    8,802.86x = 12,149.10 × 5,668.16
  4. Step 4: Simplify right side
    8,802.86x = 68,863,042.66
  5. Step 5: Solve for x
    x = 68,863,042.66/8,802.86
  6. Step 6: Final answer
    x = 7,822.80

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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.