Home / 9,924.15-13,695.28-5,447.78

Finding the Fourth Proportional to 9,924.15, 13,695.28 and 5,447.78

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Solution

The fourth proportional to 9,924.15, 13,695.28 and 5,447.78 is: 7,517.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,924.15 : 13,695.28 = 5,447.78 : x
  2. Step 2: Convert to fraction form
    9,924.15/13,695.28 = 5,447.78/x
  3. Step 3: Cross multiply
    9,924.15x = 13,695.28 × 5,447.78
  4. Step 4: Simplify right side
    9,924.15x = 74,608,872.48
  5. Step 5: Solve for x
    x = 74,608,872.48/9,924.15
  6. Step 6: Final answer
    x = 7,517.91

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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.