Home / 8,351.15-12,518.08-3,153.38

Finding the Fourth Proportional to 8,351.15, 12,518.08 and 3,153.38

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Solution

The fourth proportional to 8,351.15, 12,518.08 and 3,153.38 is: 4,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.15 : 12,518.08 = 3,153.38 : x
  2. Step 2: Convert to fraction form
    8,351.15/12,518.08 = 3,153.38/x
  3. Step 3: Cross multiply
    8,351.15x = 12,518.08 × 3,153.38
  4. Step 4: Simplify right side
    8,351.15x = 39,474,192.64
  5. Step 5: Solve for x
    x = 39,474,192.64/8,351.15
  6. Step 6: Final answer
    x = 4,726.80

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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.