Home / 12,448.68-17,179.47-7,144.53

Finding the Fourth Proportional to 12,448.68, 17,179.47 and 7,144.53

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Solution

The fourth proportional to 12,448.68, 17,179.47 and 7,144.53 is: 9,859.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.68 : 17,179.47 = 7,144.53 : x
  2. Step 2: Convert to fraction form
    12,448.68/17,179.47 = 7,144.53/x
  3. Step 3: Cross multiply
    12,448.68x = 17,179.47 × 7,144.53
  4. Step 4: Simplify right side
    12,448.68x = 122,739,238.80
  5. Step 5: Solve for x
    x = 122,739,238.80/12,448.68
  6. Step 6: Final answer
    x = 9,859.62

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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.