Home / 13,871.20-20,807.85-4,010.55

Finding the Fourth Proportional to 13,871.20, 20,807.85 and 4,010.55

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Solution

The fourth proportional to 13,871.20, 20,807.85 and 4,010.55 is: 6,016.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.20 : 20,807.85 = 4,010.55 : x
  2. Step 2: Convert to fraction form
    13,871.20/20,807.85 = 4,010.55/x
  3. Step 3: Cross multiply
    13,871.20x = 20,807.85 × 4,010.55
  4. Step 4: Simplify right side
    13,871.20x = 83,450,902.76
  5. Step 5: Solve for x
    x = 83,450,902.76/13,871.20
  6. Step 6: Final answer
    x = 6,016.13

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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.