Home / 11,217.42-15,480-6,504.39

Finding the Fourth Proportional to 11,217.42, 15,480 and 6,504.39

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Solution

The fourth proportional to 11,217.42, 15,480 and 6,504.39 is: 8,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.42 : 15,480 = 6,504.39 : x
  2. Step 2: Convert to fraction form
    11,217.42/15,480 = 6,504.39/x
  3. Step 3: Cross multiply
    11,217.42x = 15,480 × 6,504.39
  4. Step 4: Simplify right side
    11,217.42x = 100,687,957.20
  5. Step 5: Solve for x
    x = 100,687,957.20/11,217.42
  6. Step 6: Final answer
    x = 8,976.04

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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.