Home / 11,425.38-15,752.66-8,739.87

Finding the Fourth Proportional to 11,425.38, 15,752.66 and 8,739.87

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Solution

The fourth proportional to 11,425.38, 15,752.66 and 8,739.87 is: 12,050.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.38 : 15,752.66 = 8,739.87 : x
  2. Step 2: Convert to fraction form
    11,425.38/15,752.66 = 8,739.87/x
  3. Step 3: Cross multiply
    11,425.38x = 15,752.66 × 8,739.87
  4. Step 4: Simplify right side
    11,425.38x = 137,676,156.85
  5. Step 5: Solve for x
    x = 137,676,156.85/11,425.38
  6. Step 6: Final answer
    x = 12,050.03

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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.