Home / 8,881.20-12,256.68-5,105.58

Finding the Fourth Proportional to 8,881.20, 12,256.68 and 5,105.58

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Solution

The fourth proportional to 8,881.20, 12,256.68 and 5,105.58 is: 7,046.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.20 : 12,256.68 = 5,105.58 : x
  2. Step 2: Convert to fraction form
    8,881.20/12,256.68 = 5,105.58/x
  3. Step 3: Cross multiply
    8,881.20x = 12,256.68 × 5,105.58
  4. Step 4: Simplify right side
    8,881.20x = 62,577,460.27
  5. Step 5: Solve for x
    x = 62,577,460.27/8,881.20
  6. Step 6: Final answer
    x = 7,046.06

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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.