Home / 8,072.70-11,139.18-4,487.42

Finding the Fourth Proportional to 8,072.70, 11,139.18 and 4,487.42

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Solution

The fourth proportional to 8,072.70, 11,139.18 and 4,487.42 is: 6,192.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.70 : 11,139.18 = 4,487.42 : x
  2. Step 2: Convert to fraction form
    8,072.70/11,139.18 = 4,487.42/x
  3. Step 3: Cross multiply
    8,072.70x = 11,139.18 × 4,487.42
  4. Step 4: Simplify right side
    8,072.70x = 49,986,179.12
  5. Step 5: Solve for x
    x = 49,986,179.12/8,072.70
  6. Step 6: Final answer
    x = 6,192.00

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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.