Home / 12,157.76-18,229.34-5,575.70

Finding the Fourth Proportional to 12,157.76, 18,229.34 and 5,575.70

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Solution

The fourth proportional to 12,157.76, 18,229.34 and 5,575.70 is: 8,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.76 : 18,229.34 = 5,575.70 : x
  2. Step 2: Convert to fraction form
    12,157.76/18,229.34 = 5,575.70/x
  3. Step 3: Cross multiply
    12,157.76x = 18,229.34 × 5,575.70
  4. Step 4: Simplify right side
    12,157.76x = 101,641,239.89
  5. Step 5: Solve for x
    x = 101,641,239.89/12,157.76
  6. Step 6: Final answer
    x = 8,360.20

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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.