Home / 15,224.54-20,996.22-12,680.75

Finding the Fourth Proportional to 15,224.54, 20,996.22 and 12,680.75

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Solution

The fourth proportional to 15,224.54, 20,996.22 and 12,680.75 is: 17,488.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,224.54 : 20,996.22 = 12,680.75 : x
  2. Step 2: Convert to fraction form
    15,224.54/20,996.22 = 12,680.75/x
  3. Step 3: Cross multiply
    15,224.54x = 20,996.22 × 12,680.75
  4. Step 4: Simplify right side
    15,224.54x = 266,247,816.77
  5. Step 5: Solve for x
    x = 266,247,816.77/15,224.54
  6. Step 6: Final answer
    x = 17,488.07

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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.