Home / 7,144.38-10,713.87-3,445.74

Finding the Fourth Proportional to 7,144.38, 10,713.87 and 3,445.74

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Solution

The fourth proportional to 7,144.38, 10,713.87 and 3,445.74 is: 5,167.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.38 : 10,713.87 = 3,445.74 : x
  2. Step 2: Convert to fraction form
    7,144.38/10,713.87 = 3,445.74/x
  3. Step 3: Cross multiply
    7,144.38x = 10,713.87 × 3,445.74
  4. Step 4: Simplify right side
    7,144.38x = 36,917,210.41
  5. Step 5: Solve for x
    x = 36,917,210.41/7,144.38
  6. Step 6: Final answer
    x = 5,167.31

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1.5x scale

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.