Home / 15,081.48-20,812.61-8,367.30

Finding the Fourth Proportional to 15,081.48, 20,812.61 and 8,367.30

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Solution

The fourth proportional to 15,081.48, 20,812.61 and 8,367.30 is: 11,546.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,081.48 : 20,812.61 = 8,367.30 : x
  2. Step 2: Convert to fraction form
    15,081.48/20,812.61 = 8,367.30/x
  3. Step 3: Cross multiply
    15,081.48x = 20,812.61 × 8,367.30
  4. Step 4: Simplify right side
    15,081.48x = 174,145,372.57
  5. Step 5: Solve for x
    x = 174,145,372.57/15,081.48
  6. Step 6: Final answer
    x = 11,546.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.