Home / 13,387.71-20,081.41-5,488.46

Finding the Fourth Proportional to 13,387.71, 20,081.41 and 5,488.46

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Solution

The fourth proportional to 13,387.71, 20,081.41 and 5,488.46 is: 8,232.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.71 : 20,081.41 = 5,488.46 : x
  2. Step 2: Convert to fraction form
    13,387.71/20,081.41 = 5,488.46/x
  3. Step 3: Cross multiply
    13,387.71x = 20,081.41 × 5,488.46
  4. Step 4: Simplify right side
    13,387.71x = 110,215,887.68
  5. Step 5: Solve for x
    x = 110,215,887.68/13,387.71
  6. Step 6: Final answer
    x = 8,232.62

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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.