Home / 12,449.36-17,180.12-6,860.36

Finding the Fourth Proportional to 12,449.36, 17,180.12 and 6,860.36

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Solution

The fourth proportional to 12,449.36, 17,180.12 and 6,860.36 is: 9,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.36 : 17,180.12 = 6,860.36 : x
  2. Step 2: Convert to fraction form
    12,449.36/17,180.12 = 6,860.36/x
  3. Step 3: Cross multiply
    12,449.36x = 17,180.12 × 6,860.36
  4. Step 4: Simplify right side
    12,449.36x = 117,861,808.04
  5. Step 5: Solve for x
    x = 117,861,808.04/12,449.36
  6. Step 6: Final answer
    x = 9,467.30

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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.