Home / 10,340.22-14,279.60-8,839.42

Finding the Fourth Proportional to 10,340.22, 14,279.60 and 8,839.42

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Solution

The fourth proportional to 10,340.22, 14,279.60 and 8,839.42 is: 12,207.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.22 : 14,279.60 = 8,839.42 : x
  2. Step 2: Convert to fraction form
    10,340.22/14,279.60 = 8,839.42/x
  3. Step 3: Cross multiply
    10,340.22x = 14,279.60 × 8,839.42
  4. Step 4: Simplify right side
    10,340.22x = 126,223,381.83
  5. Step 5: Solve for x
    x = 126,223,381.83/10,340.22
  6. Step 6: Final answer
    x = 12,207.03

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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.