Home / 8,680.86-13,022.67-3,135.58

Finding the Fourth Proportional to 8,680.86, 13,022.67 and 3,135.58

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Solution

The fourth proportional to 8,680.86, 13,022.67 and 3,135.58 is: 4,703.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.86 : 13,022.67 = 3,135.58 : x
  2. Step 2: Convert to fraction form
    8,680.86/13,022.67 = 3,135.58/x
  3. Step 3: Cross multiply
    8,680.86x = 13,022.67 × 3,135.58
  4. Step 4: Simplify right side
    8,680.86x = 40,833,602.80
  5. Step 5: Solve for x
    x = 40,833,602.80/8,680.86
  6. Step 6: Final answer
    x = 4,703.87

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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.