Home / 9,391.23-12,959.78-5,199.48

Finding the Fourth Proportional to 9,391.23, 12,959.78 and 5,199.48

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Solution

The fourth proportional to 9,391.23, 12,959.78 and 5,199.48 is: 7,175.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,391.23 : 12,959.78 = 5,199.48 : x
  2. Step 2: Convert to fraction form
    9,391.23/12,959.78 = 5,199.48/x
  3. Step 3: Cross multiply
    9,391.23x = 12,959.78 × 5,199.48
  4. Step 4: Simplify right side
    9,391.23x = 67,384,090.92
  5. Step 5: Solve for x
    x = 67,384,090.92/9,391.23
  6. Step 6: Final answer
    x = 7,175.21

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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.