Home / 8,072.83-11,139.99-4,487.56

Finding the Fourth Proportional to 8,072.83, 11,139.99 and 4,487.56

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Solution

The fourth proportional to 8,072.83, 11,139.99 and 4,487.56 is: 6,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.83 : 11,139.99 = 4,487.56 : x
  2. Step 2: Convert to fraction form
    8,072.83/11,139.99 = 4,487.56/x
  3. Step 3: Cross multiply
    8,072.83x = 11,139.99 × 4,487.56
  4. Step 4: Simplify right side
    8,072.83x = 49,991,373.52
  5. Step 5: Solve for x
    x = 49,991,373.52/8,072.83
  6. Step 6: Final answer
    x = 6,192.55

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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.