Home / 9,255.12-12,772.32-5,276.88

Finding the Fourth Proportional to 9,255.12, 12,772.32 and 5,276.88

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Solution

The fourth proportional to 9,255.12, 12,772.32 and 5,276.88 is: 7,282.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,255.12 : 12,772.32 = 5,276.88 : x
  2. Step 2: Convert to fraction form
    9,255.12/12,772.32 = 5,276.88/x
  3. Step 3: Cross multiply
    9,255.12x = 12,772.32 × 5,276.88
  4. Step 4: Simplify right side
    9,255.12x = 67,397,999.96
  5. Step 5: Solve for x
    x = 67,397,999.96/9,255.12
  6. Step 6: Final answer
    x = 7,282.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.