Home / 11,232.30-16,848.45-5,385.90

Finding the Fourth Proportional to 11,232.30, 16,848.45 and 5,385.90

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Solution

The fourth proportional to 11,232.30, 16,848.45 and 5,385.90 is: 8,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,232.30 : 16,848.45 = 5,385.90 : x
  2. Step 2: Convert to fraction form
    11,232.30/16,848.45 = 5,385.90/x
  3. Step 3: Cross multiply
    11,232.30x = 16,848.45 × 5,385.90
  4. Step 4: Simplify right side
    11,232.30x = 90,744,066.86
  5. Step 5: Solve for x
    x = 90,744,066.86/11,232.30
  6. Step 6: Final answer
    x = 8,078.85

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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.