Home / 11,248.20-16,872.30-4,687.20

Finding the Fourth Proportional to 11,248.20, 16,872.30 and 4,687.20

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Solution

The fourth proportional to 11,248.20, 16,872.30 and 4,687.20 is: 7,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,248.20 : 16,872.30 = 4,687.20 : x
  2. Step 2: Convert to fraction form
    11,248.20/16,872.30 = 4,687.20/x
  3. Step 3: Cross multiply
    11,248.20x = 16,872.30 × 4,687.20
  4. Step 4: Simplify right side
    11,248.20x = 79,083,844.56
  5. Step 5: Solve for x
    x = 79,083,844.56/11,248.20
  6. Step 6: Final answer
    x = 7,030.80

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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.