Home / 14,112.28-19,474-8,144.20

Finding the Fourth Proportional to 14,112.28, 19,474 and 8,144.20

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Solution

The fourth proportional to 14,112.28, 19,474 and 8,144.20 is: 11,238.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.28 : 19,474 = 8,144.20 : x
  2. Step 2: Convert to fraction form
    14,112.28/19,474 = 8,144.20/x
  3. Step 3: Cross multiply
    14,112.28x = 19,474 × 8,144.20
  4. Step 4: Simplify right side
    14,112.28x = 158,600,150.80
  5. Step 5: Solve for x
    x = 158,600,150.80/14,112.28
  6. Step 6: Final answer
    x = 11,238.45

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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.