Home / 8,781.12-12,117.42-4,802.22

Finding the Fourth Proportional to 8,781.12, 12,117.42 and 4,802.22

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Solution

The fourth proportional to 8,781.12, 12,117.42 and 4,802.22 is: 6,626.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.12 : 12,117.42 = 4,802.22 : x
  2. Step 2: Convert to fraction form
    8,781.12/12,117.42 = 4,802.22/x
  3. Step 3: Cross multiply
    8,781.12x = 12,117.42 × 4,802.22
  4. Step 4: Simplify right side
    8,781.12x = 58,190,516.67
  5. Step 5: Solve for x
    x = 58,190,516.67/8,781.12
  6. Step 6: Final answer
    x = 6,626.78

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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.