Home / 8,319.26-12,475.22-4,422.78

Finding the Fourth Proportional to 8,319.26, 12,475.22 and 4,422.78

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Solution

The fourth proportional to 8,319.26, 12,475.22 and 4,422.78 is: 6,632.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.26 : 12,475.22 = 4,422.78 : x
  2. Step 2: Convert to fraction form
    8,319.26/12,475.22 = 4,422.78/x
  3. Step 3: Cross multiply
    8,319.26x = 12,475.22 × 4,422.78
  4. Step 4: Simplify right side
    8,319.26x = 55,175,153.51
  5. Step 5: Solve for x
    x = 55,175,153.51/8,319.26
  6. Step 6: Final answer
    x = 6,632.22

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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.