Home / 8,475.12-12,715.11-5,549.82

Finding the Fourth Proportional to 8,475.12, 12,715.11 and 5,549.82

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Solution

The fourth proportional to 8,475.12, 12,715.11 and 5,549.82 is: 8,326.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.12 : 12,715.11 = 5,549.82 : x
  2. Step 2: Convert to fraction form
    8,475.12/12,715.11 = 5,549.82/x
  3. Step 3: Cross multiply
    8,475.12x = 12,715.11 × 5,549.82
  4. Step 4: Simplify right side
    8,475.12x = 70,566,571.78
  5. Step 5: Solve for x
    x = 70,566,571.78/8,475.12
  6. Step 6: Final answer
    x = 8,326.32

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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.