Home / 8,557.92-12,752.27-7,685.80

Finding the Fourth Proportional to 8,557.92, 12,752.27 and 7,685.80

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Solution

The fourth proportional to 8,557.92, 12,752.27 and 7,685.80 is: 11,452.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.92 : 12,752.27 = 7,685.80 : x
  2. Step 2: Convert to fraction form
    8,557.92/12,752.27 = 7,685.80/x
  3. Step 3: Cross multiply
    8,557.92x = 12,752.27 × 7,685.80
  4. Step 4: Simplify right side
    8,557.92x = 98,011,396.77
  5. Step 5: Solve for x
    x = 98,011,396.77/8,557.92
  6. Step 6: Final answer
    x = 11,452.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.