Home / 10,765.33-16,155.42-4,191.55

Finding the Fourth Proportional to 10,765.33, 16,155.42 and 4,191.55

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Solution

The fourth proportional to 10,765.33, 16,155.42 and 4,191.55 is: 6,290.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,765.33 : 16,155.42 = 4,191.55 : x
  2. Step 2: Convert to fraction form
    10,765.33/16,155.42 = 4,191.55/x
  3. Step 3: Cross multiply
    10,765.33x = 16,155.42 × 4,191.55
  4. Step 4: Simplify right side
    10,765.33x = 67,716,250.70
  5. Step 5: Solve for x
    x = 67,716,250.70/10,765.33
  6. Step 6: Final answer
    x = 6,290.22

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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.