Home / 8,521.74-11,756.88-5,162.13

Finding the Fourth Proportional to 8,521.74, 11,756.88 and 5,162.13

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Solution

The fourth proportional to 8,521.74, 11,756.88 and 5,162.13 is: 7,121.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.74 : 11,756.88 = 5,162.13 : x
  2. Step 2: Convert to fraction form
    8,521.74/11,756.88 = 5,162.13/x
  3. Step 3: Cross multiply
    8,521.74x = 11,756.88 × 5,162.13
  4. Step 4: Simplify right side
    8,521.74x = 60,690,542.95
  5. Step 5: Solve for x
    x = 60,690,542.95/8,521.74
  6. Step 6: Final answer
    x = 7,121.85

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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.