Home / 12,527.20-18,778.44-5,511

Finding the Fourth Proportional to 12,527.20, 18,778.44 and 5,511

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Solution

The fourth proportional to 12,527.20, 18,778.44 and 5,511 is: 8,261.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,527.20 : 18,778.44 = 5,511 : x
  2. Step 2: Convert to fraction form
    12,527.20/18,778.44 = 5,511/x
  3. Step 3: Cross multiply
    12,527.20x = 18,778.44 × 5,511
  4. Step 4: Simplify right side
    12,527.20x = 103,487,982.84
  5. Step 5: Solve for x
    x = 103,487,982.84/12,527.20
  6. Step 6: Final answer
    x = 8,261.06

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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.