Home / 13,373.28-20,061.88-4,140

Finding the Fourth Proportional to 13,373.28, 20,061.88 and 4,140

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Solution

The fourth proportional to 13,373.28, 20,061.88 and 4,140 is: 6,210.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,373.28 : 20,061.88 = 4,140 : x
  2. Step 2: Convert to fraction form
    13,373.28/20,061.88 = 4,140/x
  3. Step 3: Cross multiply
    13,373.28x = 20,061.88 × 4,140
  4. Step 4: Simplify right side
    13,373.28x = 83,056,183.20
  5. Step 5: Solve for x
    x = 83,056,183.20/13,373.28
  6. Step 6: Final answer
    x = 6,210.61

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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.