Home / 9,612.82-13,265.66-5,421.04

Finding the Fourth Proportional to 9,612.82, 13,265.66 and 5,421.04

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Solution

The fourth proportional to 9,612.82, 13,265.66 and 5,421.04 is: 7,481.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,612.82 : 13,265.66 = 5,421.04 : x
  2. Step 2: Convert to fraction form
    9,612.82/13,265.66 = 5,421.04/x
  3. Step 3: Cross multiply
    9,612.82x = 13,265.66 × 5,421.04
  4. Step 4: Simplify right side
    9,612.82x = 71,913,673.49
  5. Step 5: Solve for x
    x = 71,913,673.49/9,612.82
  6. Step 6: Final answer
    x = 7,481.02

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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.