Home / 8,147.55-12,215.34-2,597.70

Finding the Fourth Proportional to 8,147.55, 12,215.34 and 2,597.70

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Solution

The fourth proportional to 8,147.55, 12,215.34 and 2,597.70 is: 3,894.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.55 : 12,215.34 = 2,597.70 : x
  2. Step 2: Convert to fraction form
    8,147.55/12,215.34 = 2,597.70/x
  3. Step 3: Cross multiply
    8,147.55x = 12,215.34 × 2,597.70
  4. Step 4: Simplify right side
    8,147.55x = 31,731,834.53
  5. Step 5: Solve for x
    x = 31,731,834.53/8,147.55
  6. Step 6: Final answer
    x = 3,894.65

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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.