Home / 9,269.78-13,891.68-5,111.75

Finding the Fourth Proportional to 9,269.78, 13,891.68 and 5,111.75

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Solution

The fourth proportional to 9,269.78, 13,891.68 and 5,111.75 is: 7,660.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,269.78 : 13,891.68 = 5,111.75 : x
  2. Step 2: Convert to fraction form
    9,269.78/13,891.68 = 5,111.75/x
  3. Step 3: Cross multiply
    9,269.78x = 13,891.68 × 5,111.75
  4. Step 4: Simplify right side
    9,269.78x = 71,010,795.24
  5. Step 5: Solve for x
    x = 71,010,795.24/9,269.78
  6. Step 6: Final answer
    x = 7,660.46

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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.