Home / 18,908.40-26,091.36-10,949.07

Finding the Fourth Proportional to 18,908.40, 26,091.36 and 10,949.07

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Solution

The fourth proportional to 18,908.40, 26,091.36 and 10,949.07 is: 15,108.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,908.40 : 26,091.36 = 10,949.07 : x
  2. Step 2: Convert to fraction form
    18,908.40/26,091.36 = 10,949.07/x
  3. Step 3: Cross multiply
    18,908.40x = 26,091.36 × 10,949.07
  4. Step 4: Simplify right side
    18,908.40x = 285,676,127.04
  5. Step 5: Solve for x
    x = 285,676,127.04/18,908.40
  6. Step 6: Final answer
    x = 15,108.42

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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.