Home / 7,754.28-11,615.22-5,149.32

Finding the Fourth Proportional to 7,754.28, 11,615.22 and 5,149.32

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Solution

The fourth proportional to 7,754.28, 11,615.22 and 5,149.32 is: 7,713.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,754.28 : 11,615.22 = 5,149.32 : x
  2. Step 2: Convert to fraction form
    7,754.28/11,615.22 = 5,149.32/x
  3. Step 3: Cross multiply
    7,754.28x = 11,615.22 × 5,149.32
  4. Step 4: Simplify right side
    7,754.28x = 59,810,484.65
  5. Step 5: Solve for x
    x = 59,810,484.65/7,754.28
  6. Step 6: Final answer
    x = 7,713.22

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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.