Home / 8,752.19-13,128.17-2,178.43

Finding the Fourth Proportional to 8,752.19, 13,128.17 and 2,178.43

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Solution

The fourth proportional to 8,752.19, 13,128.17 and 2,178.43 is: 3,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.19 : 13,128.17 = 2,178.43 : x
  2. Step 2: Convert to fraction form
    8,752.19/13,128.17 = 2,178.43/x
  3. Step 3: Cross multiply
    8,752.19x = 13,128.17 × 2,178.43
  4. Step 4: Simplify right side
    8,752.19x = 28,598,755.66
  5. Step 5: Solve for x
    x = 28,598,755.66/8,752.19
  6. Step 6: Final answer
    x = 3,267.61

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1.5x scale

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.