Home / 13,744.90-20,618.82-4,382.71

Finding the Fourth Proportional to 13,744.90, 20,618.82 and 4,382.71

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Solution

The fourth proportional to 13,744.90, 20,618.82 and 4,382.71 is: 6,574.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.90 : 20,618.82 = 4,382.71 : x
  2. Step 2: Convert to fraction form
    13,744.90/20,618.82 = 4,382.71/x
  3. Step 3: Cross multiply
    13,744.90x = 20,618.82 × 4,382.71
  4. Step 4: Simplify right side
    13,744.90x = 90,366,308.60
  5. Step 5: Solve for x
    x = 90,366,308.60/13,744.90
  6. Step 6: Final answer
    x = 6,574.53

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1.5x scale

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.