Home / 11,120.68-16,687.86-4,546.90

Finding the Fourth Proportional to 11,120.68, 16,687.86 and 4,546.90

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Solution

The fourth proportional to 11,120.68, 16,687.86 and 4,546.90 is: 6,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.68 : 16,687.86 = 4,546.90 : x
  2. Step 2: Convert to fraction form
    11,120.68/16,687.86 = 4,546.90/x
  3. Step 3: Cross multiply
    11,120.68x = 16,687.86 × 4,546.90
  4. Step 4: Simplify right side
    11,120.68x = 75,878,030.63
  5. Step 5: Solve for x
    x = 75,878,030.63/11,120.68
  6. Step 6: Final answer
    x = 6,823.15

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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.