Home / 8,669.20-13,011.08-3,742.56

Finding the Fourth Proportional to 8,669.20, 13,011.08 and 3,742.56

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Solution

The fourth proportional to 8,669.20, 13,011.08 and 3,742.56 is: 5,616.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.20 : 13,011.08 = 3,742.56 : x
  2. Step 2: Convert to fraction form
    8,669.20/13,011.08 = 3,742.56/x
  3. Step 3: Cross multiply
    8,669.20x = 13,011.08 × 3,742.56
  4. Step 4: Simplify right side
    8,669.20x = 48,694,747.56
  5. Step 5: Solve for x
    x = 48,694,747.56/8,669.20
  6. Step 6: Final answer
    x = 5,616.98

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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.