Home / 8,631.48-12,950.10-4,251.96

Finding the Fourth Proportional to 8,631.48, 12,950.10 and 4,251.96

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Solution

The fourth proportional to 8,631.48, 12,950.10 and 4,251.96 is: 6,379.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.48 : 12,950.10 = 4,251.96 : x
  2. Step 2: Convert to fraction form
    8,631.48/12,950.10 = 4,251.96/x
  3. Step 3: Cross multiply
    8,631.48x = 12,950.10 × 4,251.96
  4. Step 4: Simplify right side
    8,631.48x = 55,063,307.20
  5. Step 5: Solve for x
    x = 55,063,307.20/8,631.48
  6. Step 6: Final answer
    x = 6,379.36

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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.