Home / 10,409.22-15,609.76-3,387.53

Finding the Fourth Proportional to 10,409.22, 15,609.76 and 3,387.53

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Solution

The fourth proportional to 10,409.22, 15,609.76 and 3,387.53 is: 5,079.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.22 : 15,609.76 = 3,387.53 : x
  2. Step 2: Convert to fraction form
    10,409.22/15,609.76 = 3,387.53/x
  3. Step 3: Cross multiply
    10,409.22x = 15,609.76 × 3,387.53
  4. Step 4: Simplify right side
    10,409.22x = 52,878,443.78
  5. Step 5: Solve for x
    x = 52,878,443.78/10,409.22
  6. Step 6: Final answer
    x = 5,079.96

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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.