Home / 8,928.16-13,387.22-3,661.72

Finding the Fourth Proportional to 8,928.16, 13,387.22 and 3,661.72

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Solution

The fourth proportional to 8,928.16, 13,387.22 and 3,661.72 is: 5,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.16 : 13,387.22 = 3,661.72 : x
  2. Step 2: Convert to fraction form
    8,928.16/13,387.22 = 3,661.72/x
  3. Step 3: Cross multiply
    8,928.16x = 13,387.22 × 3,661.72
  4. Step 4: Simplify right side
    8,928.16x = 49,020,251.22
  5. Step 5: Solve for x
    x = 49,020,251.22/8,928.16
  6. Step 6: Final answer
    x = 5,490.52

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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.