Home / 12,576.90-17,354.92-7,540.18

Finding the Fourth Proportional to 12,576.90, 17,354.92 and 7,540.18

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Solution

The fourth proportional to 12,576.90, 17,354.92 and 7,540.18 is: 10,404.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.90 : 17,354.92 = 7,540.18 : x
  2. Step 2: Convert to fraction form
    12,576.90/17,354.92 = 7,540.18/x
  3. Step 3: Cross multiply
    12,576.90x = 17,354.92 × 7,540.18
  4. Step 4: Simplify right side
    12,576.90x = 130,859,220.69
  5. Step 5: Solve for x
    x = 130,859,220.69/12,576.90
  6. Step 6: Final answer
    x = 10,404.73

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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.