Home / 11,851.32-17,770.80-5,921.76

Finding the Fourth Proportional to 11,851.32, 17,770.80 and 5,921.76

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Solution

The fourth proportional to 11,851.32, 17,770.80 and 5,921.76 is: 8,879.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,851.32 : 17,770.80 = 5,921.76 : x
  2. Step 2: Convert to fraction form
    11,851.32/17,770.80 = 5,921.76/x
  3. Step 3: Cross multiply
    11,851.32x = 17,770.80 × 5,921.76
  4. Step 4: Simplify right side
    11,851.32x = 105,234,412.61
  5. Step 5: Solve for x
    x = 105,234,412.61/11,851.32
  6. Step 6: Final answer
    x = 8,879.55

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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.