Home / 10,689.76-16,034.66-4,119.04

Finding the Fourth Proportional to 10,689.76, 16,034.66 and 4,119.04

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Solution

The fourth proportional to 10,689.76, 16,034.66 and 4,119.04 is: 6,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,689.76 : 16,034.66 = 4,119.04 : x
  2. Step 2: Convert to fraction form
    10,689.76/16,034.66 = 4,119.04/x
  3. Step 3: Cross multiply
    10,689.76x = 16,034.66 × 4,119.04
  4. Step 4: Simplify right side
    10,689.76x = 66,047,405.93
  5. Step 5: Solve for x
    x = 66,047,405.93/10,689.76
  6. Step 6: Final answer
    x = 6,178.57

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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.