Home / 11,518.32-17,278.02-3,727.74

Finding the Fourth Proportional to 11,518.32, 17,278.02 and 3,727.74

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Solution

The fourth proportional to 11,518.32, 17,278.02 and 3,727.74 is: 5,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.32 : 17,278.02 = 3,727.74 : x
  2. Step 2: Convert to fraction form
    11,518.32/17,278.02 = 3,727.74/x
  3. Step 3: Cross multiply
    11,518.32x = 17,278.02 × 3,727.74
  4. Step 4: Simplify right side
    11,518.32x = 64,407,966.27
  5. Step 5: Solve for x
    x = 64,407,966.27/11,518.32
  6. Step 6: Final answer
    x = 5,591.78

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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.