Home / 11,344.79-15,657.20-6,868.43

Finding the Fourth Proportional to 11,344.79, 15,657.20 and 6,868.43

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Solution

The fourth proportional to 11,344.79, 15,657.20 and 6,868.43 is: 9,479.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,344.79 : 15,657.20 = 6,868.43 : x
  2. Step 2: Convert to fraction form
    11,344.79/15,657.20 = 6,868.43/x
  3. Step 3: Cross multiply
    11,344.79x = 15,657.20 × 6,868.43
  4. Step 4: Simplify right side
    11,344.79x = 107,540,269.57
  5. Step 5: Solve for x
    x = 107,540,269.57/11,344.79
  6. Step 6: Final answer
    x = 9,479.27

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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.