Home / 9,399.24-12,970.41-5,149.46

Finding the Fourth Proportional to 9,399.24, 12,970.41 and 5,149.46

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Solution

The fourth proportional to 9,399.24, 12,970.41 and 5,149.46 is: 7,105.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,399.24 : 12,970.41 = 5,149.46 : x
  2. Step 2: Convert to fraction form
    9,399.24/12,970.41 = 5,149.46/x
  3. Step 3: Cross multiply
    9,399.24x = 12,970.41 × 5,149.46
  4. Step 4: Simplify right side
    9,399.24x = 66,790,542.63
  5. Step 5: Solve for x
    x = 66,790,542.63/9,399.24
  6. Step 6: Final answer
    x = 7,105.95

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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.