Home / 10,750.72-16,129.12-9,722.56

Finding the Fourth Proportional to 10,750.72, 16,129.12 and 9,722.56

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Solution

The fourth proportional to 10,750.72, 16,129.12 and 9,722.56 is: 14,586.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,750.72 : 16,129.12 = 9,722.56 : x
  2. Step 2: Convert to fraction form
    10,750.72/16,129.12 = 9,722.56/x
  3. Step 3: Cross multiply
    10,750.72x = 16,129.12 × 9,722.56
  4. Step 4: Simplify right side
    10,750.72x = 156,816,336.95
  5. Step 5: Solve for x
    x = 156,816,336.95/10,750.72
  6. Step 6: Final answer
    x = 14,586.59

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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.