Home / 8,939.13-12,330.87-5,576.10

Finding the Fourth Proportional to 8,939.13, 12,330.87 and 5,576.10

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Solution

The fourth proportional to 8,939.13, 12,330.87 and 5,576.10 is: 7,691.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.13 : 12,330.87 = 5,576.10 : x
  2. Step 2: Convert to fraction form
    8,939.13/12,330.87 = 5,576.10/x
  3. Step 3: Cross multiply
    8,939.13x = 12,330.87 × 5,576.10
  4. Step 4: Simplify right side
    8,939.13x = 68,758,164.21
  5. Step 5: Solve for x
    x = 68,758,164.21/8,939.13
  6. Step 6: Final answer
    x = 7,691.82

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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.