Home / 19,859.79-27,406.84-10,908.12

Finding the Fourth Proportional to 19,859.79, 27,406.84 and 10,908.12

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Solution

The fourth proportional to 19,859.79, 27,406.84 and 10,908.12 is: 15,053.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.79 : 27,406.84 = 10,908.12 : x
  2. Step 2: Convert to fraction form
    19,859.79/27,406.84 = 10,908.12/x
  3. Step 3: Cross multiply
    19,859.79x = 27,406.84 × 10,908.12
  4. Step 4: Simplify right side
    19,859.79x = 298,957,099.54
  5. Step 5: Solve for x
    x = 298,957,099.54/19,859.79
  6. Step 6: Final answer
    x = 15,053.39

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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.