Home / 9,928.92-13,700.82-5,679.60

Finding the Fourth Proportional to 9,928.92, 13,700.82 and 5,679.60

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Solution

The fourth proportional to 9,928.92, 13,700.82 and 5,679.60 is: 7,837.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.92 : 13,700.82 = 5,679.60 : x
  2. Step 2: Convert to fraction form
    9,928.92/13,700.82 = 5,679.60/x
  3. Step 3: Cross multiply
    9,928.92x = 13,700.82 × 5,679.60
  4. Step 4: Simplify right side
    9,928.92x = 77,815,177.27
  5. Step 5: Solve for x
    x = 77,815,177.27/9,928.92
  6. Step 6: Final answer
    x = 7,837.22

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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.