Home / 9,278.28-13,917.42-7,629.83

Finding the Fourth Proportional to 9,278.28, 13,917.42 and 7,629.83

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Solution

The fourth proportional to 9,278.28, 13,917.42 and 7,629.83 is: 11,444.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.28 : 13,917.42 = 7,629.83 : x
  2. Step 2: Convert to fraction form
    9,278.28/13,917.42 = 7,629.83/x
  3. Step 3: Cross multiply
    9,278.28x = 13,917.42 × 7,629.83
  4. Step 4: Simplify right side
    9,278.28x = 106,187,531.24
  5. Step 5: Solve for x
    x = 106,187,531.24/9,278.28
  6. Step 6: Final answer
    x = 11,444.74

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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.