Home / 8,839.12-12,197.32-6,325.20

Finding the Fourth Proportional to 8,839.12, 12,197.32 and 6,325.20

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Solution

The fourth proportional to 8,839.12, 12,197.32 and 6,325.20 is: 8,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.12 : 12,197.32 = 6,325.20 : x
  2. Step 2: Convert to fraction form
    8,839.12/12,197.32 = 6,325.20/x
  3. Step 3: Cross multiply
    8,839.12x = 12,197.32 × 6,325.20
  4. Step 4: Simplify right side
    8,839.12x = 77,150,488.46
  5. Step 5: Solve for x
    x = 77,150,488.46/8,839.12
  6. Step 6: Final answer
    x = 8,728.30

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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.