Home / 8,731.19-13,100.25-3,184.91

Finding the Fourth Proportional to 8,731.19, 13,100.25 and 3,184.91

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Solution

The fourth proportional to 8,731.19, 13,100.25 and 3,184.91 is: 4,778.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.19 : 13,100.25 = 3,184.91 : x
  2. Step 2: Convert to fraction form
    8,731.19/13,100.25 = 3,184.91/x
  3. Step 3: Cross multiply
    8,731.19x = 13,100.25 × 3,184.91
  4. Step 4: Simplify right side
    8,731.19x = 41,723,117.23
  5. Step 5: Solve for x
    x = 41,723,117.23/8,731.19
  6. Step 6: Final answer
    x = 4,778.63

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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.