Home / 12,399.13-17,103.84-7,358.36

Finding the Fourth Proportional to 12,399.13, 17,103.84 and 7,358.36

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Solution

The fourth proportional to 12,399.13, 17,103.84 and 7,358.36 is: 10,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.13 : 17,103.84 = 7,358.36 : x
  2. Step 2: Convert to fraction form
    12,399.13/17,103.84 = 7,358.36/x
  3. Step 3: Cross multiply
    12,399.13x = 17,103.84 × 7,358.36
  4. Step 4: Simplify right side
    12,399.13x = 125,856,212.10
  5. Step 5: Solve for x
    x = 125,856,212.10/12,399.13
  6. Step 6: Final answer
    x = 10,150.41

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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.