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Finding the Fourth Proportional to 8,998.89, 13,498.34 and 4,613.55

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Solution

The fourth proportional to 8,998.89, 13,498.34 and 4,613.55 is: 6,920.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998.89 : 13,498.34 = 4,613.55 : x
  2. Step 2: Convert to fraction form
    8,998.89/13,498.34 = 4,613.55/x
  3. Step 3: Cross multiply
    8,998.89x = 13,498.34 × 4,613.55
  4. Step 4: Simplify right side
    8,998.89x = 62,275,243.44
  5. Step 5: Solve for x
    x = 62,275,243.44/8,998.89
  6. Step 6: Final answer
    x = 6,920.33

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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.