Home / 8,375.78-12,562.18-3,113.35

Finding the Fourth Proportional to 8,375.78, 12,562.18 and 3,113.35

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Solution

The fourth proportional to 8,375.78, 12,562.18 and 3,113.35 is: 4,669.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.78 : 12,562.18 = 3,113.35 : x
  2. Step 2: Convert to fraction form
    8,375.78/12,562.18 = 3,113.35/x
  3. Step 3: Cross multiply
    8,375.78x = 12,562.18 × 3,113.35
  4. Step 4: Simplify right side
    8,375.78x = 39,110,463.10
  5. Step 5: Solve for x
    x = 39,110,463.10/8,375.78
  6. Step 6: Final answer
    x = 4,669.47

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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.