Home / 10,434.40-15,649.12-4,194.43

Finding the Fourth Proportional to 10,434.40, 15,649.12 and 4,194.43

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Solution

The fourth proportional to 10,434.40, 15,649.12 and 4,194.43 is: 6,290.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,434.40 : 15,649.12 = 4,194.43 : x
  2. Step 2: Convert to fraction form
    10,434.40/15,649.12 = 4,194.43/x
  3. Step 3: Cross multiply
    10,434.40x = 15,649.12 × 4,194.43
  4. Step 4: Simplify right side
    10,434.40x = 65,639,138.40
  5. Step 5: Solve for x
    x = 65,639,138.40/10,434.40
  6. Step 6: Final answer
    x = 6,290.65

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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.