Home / 11,251.56-16,859.90-8,475.24

Finding the Fourth Proportional to 11,251.56, 16,859.90 and 8,475.24

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Solution

The fourth proportional to 11,251.56, 16,859.90 and 8,475.24 is: 12,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,251.56 : 16,859.90 = 8,475.24 : x
  2. Step 2: Convert to fraction form
    11,251.56/16,859.90 = 8,475.24/x
  3. Step 3: Cross multiply
    11,251.56x = 16,859.90 × 8,475.24
  4. Step 4: Simplify right side
    11,251.56x = 142,891,698.88
  5. Step 5: Solve for x
    x = 142,891,698.88/11,251.56
  6. Step 6: Final answer
    x = 12,699.72

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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.