Home / 13,544.43-18,691.31-7,576.20

Finding the Fourth Proportional to 13,544.43, 18,691.31 and 7,576.20

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Solution

The fourth proportional to 13,544.43, 18,691.31 and 7,576.20 is: 10,455.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,544.43 : 18,691.31 = 7,576.20 : x
  2. Step 2: Convert to fraction form
    13,544.43/18,691.31 = 7,576.20/x
  3. Step 3: Cross multiply
    13,544.43x = 18,691.31 × 7,576.20
  4. Step 4: Simplify right side
    13,544.43x = 141,609,064.94
  5. Step 5: Solve for x
    x = 141,609,064.94/13,544.43
  6. Step 6: Final answer
    x = 10,455.15

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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.