Home / 7,342.56-11,012.40-2,147.04

Finding the Fourth Proportional to 7,342.56, 11,012.40 and 2,147.04

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Solution

The fourth proportional to 7,342.56, 11,012.40 and 2,147.04 is: 3,220.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.56 : 11,012.40 = 2,147.04 : x
  2. Step 2: Convert to fraction form
    7,342.56/11,012.40 = 2,147.04/x
  3. Step 3: Cross multiply
    7,342.56x = 11,012.40 × 2,147.04
  4. Step 4: Simplify right side
    7,342.56x = 23,644,063.30
  5. Step 5: Solve for x
    x = 23,644,063.30/7,342.56
  6. Step 6: Final answer
    x = 3,220.14

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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.