Home / 8,521.39-11,757.72-4,983.90

Finding the Fourth Proportional to 8,521.39, 11,757.72 and 4,983.90

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Solution

The fourth proportional to 8,521.39, 11,757.72 and 4,983.90 is: 6,876.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.39 : 11,757.72 = 4,983.90 : x
  2. Step 2: Convert to fraction form
    8,521.39/11,757.72 = 4,983.90/x
  3. Step 3: Cross multiply
    8,521.39x = 11,757.72 × 4,983.90
  4. Step 4: Simplify right side
    8,521.39x = 58,599,300.71
  5. Step 5: Solve for x
    x = 58,599,300.71/8,521.39
  6. Step 6: Final answer
    x = 6,876.73

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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.