Home / 8,488.89-12,730.34-3,489.84

Finding the Fourth Proportional to 8,488.89, 12,730.34 and 3,489.84

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Solution

The fourth proportional to 8,488.89, 12,730.34 and 3,489.84 is: 5,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.89 : 12,730.34 = 3,489.84 : x
  2. Step 2: Convert to fraction form
    8,488.89/12,730.34 = 3,489.84/x
  3. Step 3: Cross multiply
    8,488.89x = 12,730.34 × 3,489.84
  4. Step 4: Simplify right side
    8,488.89x = 44,426,832.30
  5. Step 5: Solve for x
    x = 44,426,832.30/8,488.89
  6. Step 6: Final answer
    x = 5,233.53

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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.