Home / 10,418.80-14,378.12-5,881.72

Finding the Fourth Proportional to 10,418.80, 14,378.12 and 5,881.72

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Solution

The fourth proportional to 10,418.80, 14,378.12 and 5,881.72 is: 8,116.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.80 : 14,378.12 = 5,881.72 : x
  2. Step 2: Convert to fraction form
    10,418.80/14,378.12 = 5,881.72/x
  3. Step 3: Cross multiply
    10,418.80x = 14,378.12 × 5,881.72
  4. Step 4: Simplify right side
    10,418.80x = 84,568,046.56
  5. Step 5: Solve for x
    x = 84,568,046.56/10,418.80
  6. Step 6: Final answer
    x = 8,116.87

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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.