Home / 9,113.78-13,668.82-2,538.20

Finding the Fourth Proportional to 9,113.78, 13,668.82 and 2,538.20

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Solution

The fourth proportional to 9,113.78, 13,668.82 and 2,538.20 is: 3,806.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,113.78 : 13,668.82 = 2,538.20 : x
  2. Step 2: Convert to fraction form
    9,113.78/13,668.82 = 2,538.20/x
  3. Step 3: Cross multiply
    9,113.78x = 13,668.82 × 2,538.20
  4. Step 4: Simplify right side
    9,113.78x = 34,694,226.75
  5. Step 5: Solve for x
    x = 34,694,226.75/9,113.78
  6. Step 6: Final answer
    x = 3,806.79

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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.