Home / 8,928.10-13,381.62-3,081.52

Finding the Fourth Proportional to 8,928.10, 13,381.62 and 3,081.52

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Solution

The fourth proportional to 8,928.10, 13,381.62 and 3,081.52 is: 4,618.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.10 : 13,381.62 = 3,081.52 : x
  2. Step 2: Convert to fraction form
    8,928.10/13,381.62 = 3,081.52/x
  3. Step 3: Cross multiply
    8,928.10x = 13,381.62 × 3,081.52
  4. Step 4: Simplify right side
    8,928.10x = 41,235,729.66
  5. Step 5: Solve for x
    x = 41,235,729.66/8,928.10
  6. Step 6: Final answer
    x = 4,618.65

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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.