Home / 7,042.56-10,555.20-3,144.96

Finding the Fourth Proportional to 7,042.56, 10,555.20 and 3,144.96

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Solution

The fourth proportional to 7,042.56, 10,555.20 and 3,144.96 is: 4,713.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.56 : 10,555.20 = 3,144.96 : x
  2. Step 2: Convert to fraction form
    7,042.56/10,555.20 = 3,144.96/x
  3. Step 3: Cross multiply
    7,042.56x = 10,555.20 × 3,144.96
  4. Step 4: Simplify right side
    7,042.56x = 33,195,681.79
  5. Step 5: Solve for x
    x = 33,195,681.79/7,042.56
  6. Step 6: Final answer
    x = 4,713.58

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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.