Home / 7,576.40-11,381.16-5,399.12

Finding the Fourth Proportional to 7,576.40, 11,381.16 and 5,399.12

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Solution

The fourth proportional to 7,576.40, 11,381.16 and 5,399.12 is: 8,110.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,576.40 : 11,381.16 = 5,399.12 : x
  2. Step 2: Convert to fraction form
    7,576.40/11,381.16 = 5,399.12/x
  3. Step 3: Cross multiply
    7,576.40x = 11,381.16 × 5,399.12
  4. Step 4: Simplify right side
    7,576.40x = 61,448,248.58
  5. Step 5: Solve for x
    x = 61,448,248.58/7,576.40
  6. Step 6: Final answer
    x = 8,110.48

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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.