Home / 15,418.28-21,277.22-8,344.69

Finding the Fourth Proportional to 15,418.28, 21,277.22 and 8,344.69

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Solution

The fourth proportional to 15,418.28, 21,277.22 and 8,344.69 is: 11,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.28 : 21,277.22 = 8,344.69 : x
  2. Step 2: Convert to fraction form
    15,418.28/21,277.22 = 8,344.69/x
  3. Step 3: Cross multiply
    15,418.28x = 21,277.22 × 8,344.69
  4. Step 4: Simplify right side
    15,418.28x = 177,551,710.05
  5. Step 5: Solve for x
    x = 177,551,710.05/15,418.28
  6. Step 6: Final answer
    x = 11,515.66

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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.