Home / 9,928.89-13,704.26-6,149.76

Finding the Fourth Proportional to 9,928.89, 13,704.26 and 6,149.76

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Solution

The fourth proportional to 9,928.89, 13,704.26 and 6,149.76 is: 8,488.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.89 : 13,704.26 = 6,149.76 : x
  2. Step 2: Convert to fraction form
    9,928.89/13,704.26 = 6,149.76/x
  3. Step 3: Cross multiply
    9,928.89x = 13,704.26 × 6,149.76
  4. Step 4: Simplify right side
    9,928.89x = 84,277,879.23
  5. Step 5: Solve for x
    x = 84,277,879.23/9,928.89
  6. Step 6: Final answer
    x = 8,488.15

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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.