Home / 8,770.28-13,136.94-5,440.55

Finding the Fourth Proportional to 8,770.28, 13,136.94 and 5,440.55

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Solution

The fourth proportional to 8,770.28, 13,136.94 and 5,440.55 is: 8,149.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.28 : 13,136.94 = 5,440.55 : x
  2. Step 2: Convert to fraction form
    8,770.28/13,136.94 = 5,440.55/x
  3. Step 3: Cross multiply
    8,770.28x = 13,136.94 × 5,440.55
  4. Step 4: Simplify right side
    8,770.28x = 71,472,113.23
  5. Step 5: Solve for x
    x = 71,472,113.23/8,770.28
  6. Step 6: Final answer
    x = 8,149.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.