Home / 8,313.42-12,462.45-3,115.98

Finding the Fourth Proportional to 8,313.42, 12,462.45 and 3,115.98

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Solution

The fourth proportional to 8,313.42, 12,462.45 and 3,115.98 is: 4,671.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.42 : 12,462.45 = 3,115.98 : x
  2. Step 2: Convert to fraction form
    8,313.42/12,462.45 = 3,115.98/x
  3. Step 3: Cross multiply
    8,313.42x = 12,462.45 × 3,115.98
  4. Step 4: Simplify right side
    8,313.42x = 38,832,744.95
  5. Step 5: Solve for x
    x = 38,832,744.95/8,313.42
  6. Step 6: Final answer
    x = 4,671.09

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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.