Home / 10,409.96-15,613.32-3,390.18

Finding the Fourth Proportional to 10,409.96, 15,613.32 and 3,390.18

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Solution

The fourth proportional to 10,409.96, 15,613.32 and 3,390.18 is: 5,084.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.96 : 15,613.32 = 3,390.18 : x
  2. Step 2: Convert to fraction form
    10,409.96/15,613.32 = 3,390.18/x
  3. Step 3: Cross multiply
    10,409.96x = 15,613.32 × 3,390.18
  4. Step 4: Simplify right side
    10,409.96x = 52,931,965.20
  5. Step 5: Solve for x
    x = 52,931,965.20/10,409.96
  6. Step 6: Final answer
    x = 5,084.74

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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.