Home / 15,122.27-20,868.46-8,407.03

Finding the Fourth Proportional to 15,122.27, 20,868.46 and 8,407.03

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Solution

The fourth proportional to 15,122.27, 20,868.46 and 8,407.03 is: 11,601.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,122.27 : 20,868.46 = 8,407.03 : x
  2. Step 2: Convert to fraction form
    15,122.27/20,868.46 = 8,407.03/x
  3. Step 3: Cross multiply
    15,122.27x = 20,868.46 × 8,407.03
  4. Step 4: Simplify right side
    15,122.27x = 175,441,769.27
  5. Step 5: Solve for x
    x = 175,441,769.27/15,122.27
  6. Step 6: Final answer
    x = 11,601.55

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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.