Home / 15,381.27-21,226.23-8,667

Finding the Fourth Proportional to 15,381.27, 21,226.23 and 8,667

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Solution

The fourth proportional to 15,381.27, 21,226.23 and 8,667 is: 11,960.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,381.27 : 21,226.23 = 8,667 : x
  2. Step 2: Convert to fraction form
    15,381.27/21,226.23 = 8,667/x
  3. Step 3: Cross multiply
    15,381.27x = 21,226.23 × 8,667
  4. Step 4: Simplify right side
    15,381.27x = 183,967,735.41
  5. Step 5: Solve for x
    x = 183,967,735.41/15,381.27
  6. Step 6: Final answer
    x = 11,960.50

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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.