Home / 8,815.90-12,166.71-4,837.79

Finding the Fourth Proportional to 8,815.90, 12,166.71 and 4,837.79

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Solution

The fourth proportional to 8,815.90, 12,166.71 and 4,837.79 is: 6,676.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.90 : 12,166.71 = 4,837.79 : x
  2. Step 2: Convert to fraction form
    8,815.90/12,166.71 = 4,837.79/x
  3. Step 3: Cross multiply
    8,815.90x = 12,166.71 × 4,837.79
  4. Step 4: Simplify right side
    8,815.90x = 58,859,902.95
  5. Step 5: Solve for x
    x = 58,859,902.95/8,815.90
  6. Step 6: Final answer
    x = 6,676.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.