Home / 7,565.07-11,343.42-3,121.55

Finding the Fourth Proportional to 7,565.07, 11,343.42 and 3,121.55

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Solution

The fourth proportional to 7,565.07, 11,343.42 and 3,121.55 is: 4,680.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,565.07 : 11,343.42 = 3,121.55 : x
  2. Step 2: Convert to fraction form
    7,565.07/11,343.42 = 3,121.55/x
  3. Step 3: Cross multiply
    7,565.07x = 11,343.42 × 3,121.55
  4. Step 4: Simplify right side
    7,565.07x = 35,408,995.98
  5. Step 5: Solve for x
    x = 35,408,995.98/7,565.07
  6. Step 6: Final answer
    x = 4,680.59

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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.