Home / 9,917.36-13,685.92-5,441.12

Finding the Fourth Proportional to 9,917.36, 13,685.92 and 5,441.12

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Solution

The fourth proportional to 9,917.36, 13,685.92 and 5,441.12 is: 7,508.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.36 : 13,685.92 = 5,441.12 : x
  2. Step 2: Convert to fraction form
    9,917.36/13,685.92 = 5,441.12/x
  3. Step 3: Cross multiply
    9,917.36x = 13,685.92 × 5,441.12
  4. Step 4: Simplify right side
    9,917.36x = 74,466,733.03
  5. Step 5: Solve for x
    x = 74,466,733.03/9,917.36
  6. Step 6: Final answer
    x = 7,508.73

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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.