Home / 8,772.20-12,101.28-5,232.92

Finding the Fourth Proportional to 8,772.20, 12,101.28 and 5,232.92

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Solution

The fourth proportional to 8,772.20, 12,101.28 and 5,232.92 is: 7,218.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.20 : 12,101.28 = 5,232.92 : x
  2. Step 2: Convert to fraction form
    8,772.20/12,101.28 = 5,232.92/x
  3. Step 3: Cross multiply
    8,772.20x = 12,101.28 × 5,232.92
  4. Step 4: Simplify right side
    8,772.20x = 63,325,030.14
  5. Step 5: Solve for x
    x = 63,325,030.14/8,772.20
  6. Step 6: Final answer
    x = 7,218.83

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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.