Home / 9,391.14-12,959.76-5,199.42

Finding the Fourth Proportional to 9,391.14, 12,959.76 and 5,199.42

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Solution

The fourth proportional to 9,391.14, 12,959.76 and 5,199.42 is: 7,175.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,391.14 : 12,959.76 = 5,199.42 : x
  2. Step 2: Convert to fraction form
    9,391.14/12,959.76 = 5,199.42/x
  3. Step 3: Cross multiply
    9,391.14x = 12,959.76 × 5,199.42
  4. Step 4: Simplify right side
    9,391.14x = 67,383,235.34
  5. Step 5: Solve for x
    x = 67,383,235.34/9,391.14
  6. Step 6: Final answer
    x = 7,175.19

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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.