Home / 13,949.66-19,243.42-8,908.58

Finding the Fourth Proportional to 13,949.66, 19,243.42 and 8,908.58

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Solution

The fourth proportional to 13,949.66, 19,243.42 and 8,908.58 is: 12,289.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.66 : 19,243.42 = 8,908.58 : x
  2. Step 2: Convert to fraction form
    13,949.66/19,243.42 = 8,908.58/x
  3. Step 3: Cross multiply
    13,949.66x = 19,243.42 × 8,908.58
  4. Step 4: Simplify right side
    13,949.66x = 171,431,572.38
  5. Step 5: Solve for x
    x = 171,431,572.38/13,949.66
  6. Step 6: Final answer
    x = 12,289.30

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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.