Home / 13,377.27-20,065.95-3,515.72

Finding the Fourth Proportional to 13,377.27, 20,065.95 and 3,515.72

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Solution

The fourth proportional to 13,377.27, 20,065.95 and 3,515.72 is: 5,273.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.27 : 20,065.95 = 3,515.72 : x
  2. Step 2: Convert to fraction form
    13,377.27/20,065.95 = 3,515.72/x
  3. Step 3: Cross multiply
    13,377.27x = 20,065.95 × 3,515.72
  4. Step 4: Simplify right side
    13,377.27x = 70,546,161.40
  5. Step 5: Solve for x
    x = 70,546,161.40/13,377.27
  6. Step 6: Final answer
    x = 5,273.58

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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.