Home / 8,117.79-12,180.54-5,622.82

Finding the Fourth Proportional to 8,117.79, 12,180.54 and 5,622.82

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Solution

The fourth proportional to 8,117.79, 12,180.54 and 5,622.82 is: 8,436.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.79 : 12,180.54 = 5,622.82 : x
  2. Step 2: Convert to fraction form
    8,117.79/12,180.54 = 5,622.82/x
  3. Step 3: Cross multiply
    8,117.79x = 12,180.54 × 5,622.82
  4. Step 4: Simplify right side
    8,117.79x = 68,488,974.56
  5. Step 5: Solve for x
    x = 68,488,974.56/8,117.79
  6. Step 6: Final answer
    x = 8,436.89

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1.5x scale

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.