Home / 8,934.60-12,321.67-5,577.72

Finding the Fourth Proportional to 8,934.60, 12,321.67 and 5,577.72

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Solution

The fourth proportional to 8,934.60, 12,321.67 and 5,577.72 is: 7,692.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,934.60 : 12,321.67 = 5,577.72 : x
  2. Step 2: Convert to fraction form
    8,934.60/12,321.67 = 5,577.72/x
  3. Step 3: Cross multiply
    8,934.60x = 12,321.67 × 5,577.72
  4. Step 4: Simplify right side
    8,934.60x = 68,726,825.19
  5. Step 5: Solve for x
    x = 68,726,825.19/8,934.60
  6. Step 6: Final answer
    x = 7,692.21

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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.