Home / 13,292.18-19,962.87-8,912.71

Finding the Fourth Proportional to 13,292.18, 19,962.87 and 8,912.71

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Solution

The fourth proportional to 13,292.18, 19,962.87 and 8,912.71 is: 13,385.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.18 : 19,962.87 = 8,912.71 : x
  2. Step 2: Convert to fraction form
    13,292.18/19,962.87 = 8,912.71/x
  3. Step 3: Cross multiply
    13,292.18x = 19,962.87 × 8,912.71
  4. Step 4: Simplify right side
    13,292.18x = 177,923,219.00
  5. Step 5: Solve for x
    x = 177,923,219.00/13,292.18
  6. Step 6: Final answer
    x = 13,385.56

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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.