Home / 9,928.70-13,701.92-5,736.95

Finding the Fourth Proportional to 9,928.70, 13,701.92 and 5,736.95

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Solution

The fourth proportional to 9,928.70, 13,701.92 and 5,736.95 is: 7,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.70 : 13,701.92 = 5,736.95 : x
  2. Step 2: Convert to fraction form
    9,928.70/13,701.92 = 5,736.95/x
  3. Step 3: Cross multiply
    9,928.70x = 13,701.92 × 5,736.95
  4. Step 4: Simplify right side
    9,928.70x = 78,607,229.94
  5. Step 5: Solve for x
    x = 78,607,229.94/9,928.70
  6. Step 6: Final answer
    x = 7,917.17

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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.