Home / 15,184.24-20,954.28-8,469.69

Finding the Fourth Proportional to 15,184.24, 20,954.28 and 8,469.69

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Solution

The fourth proportional to 15,184.24, 20,954.28 and 8,469.69 is: 11,688.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.24 : 20,954.28 = 8,469.69 : x
  2. Step 2: Convert to fraction form
    15,184.24/20,954.28 = 8,469.69/x
  3. Step 3: Cross multiply
    15,184.24x = 20,954.28 × 8,469.69
  4. Step 4: Simplify right side
    15,184.24x = 177,476,318.75
  5. Step 5: Solve for x
    x = 177,476,318.75/15,184.24
  6. Step 6: Final answer
    x = 11,688.19

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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.