Home / 15,186.78-22,759.38-9,643.99

Finding the Fourth Proportional to 15,186.78, 22,759.38 and 9,643.99

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Solution

The fourth proportional to 15,186.78, 22,759.38 and 9,643.99 is: 14,452.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,186.78 : 22,759.38 = 9,643.99 : x
  2. Step 2: Convert to fraction form
    15,186.78/22,759.38 = 9,643.99/x
  3. Step 3: Cross multiply
    15,186.78x = 22,759.38 × 9,643.99
  4. Step 4: Simplify right side
    15,186.78x = 219,491,154.89
  5. Step 5: Solve for x
    x = 219,491,154.89/15,186.78
  6. Step 6: Final answer
    x = 14,452.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.