Home / 7,615.05-11,422.44-3,915.12

Finding the Fourth Proportional to 7,615.05, 11,422.44 and 3,915.12

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Solution

The fourth proportional to 7,615.05, 11,422.44 and 3,915.12 is: 5,872.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.05 : 11,422.44 = 3,915.12 : x
  2. Step 2: Convert to fraction form
    7,615.05/11,422.44 = 3,915.12/x
  3. Step 3: Cross multiply
    7,615.05x = 11,422.44 × 3,915.12
  4. Step 4: Simplify right side
    7,615.05x = 44,720,223.29
  5. Step 5: Solve for x
    x = 44,720,223.29/7,615.05
  6. Step 6: Final answer
    x = 5,872.61

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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.