Home / 8,722.89-13,080.08-3,098.66

Finding the Fourth Proportional to 8,722.89, 13,080.08 and 3,098.66

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Solution

The fourth proportional to 8,722.89, 13,080.08 and 3,098.66 is: 4,646.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.89 : 13,080.08 = 3,098.66 : x
  2. Step 2: Convert to fraction form
    8,722.89/13,080.08 = 3,098.66/x
  3. Step 3: Cross multiply
    8,722.89x = 13,080.08 × 3,098.66
  4. Step 4: Simplify right side
    8,722.89x = 40,530,663.04
  5. Step 5: Solve for x
    x = 40,530,663.04/8,722.89
  6. Step 6: Final answer
    x = 4,646.47

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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.