Home / 19,908.26-27,472.80-10,955.78

Finding the Fourth Proportional to 19,908.26, 27,472.80 and 10,955.78

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Solution

The fourth proportional to 19,908.26, 27,472.80 and 10,955.78 is: 15,118.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,908.26 : 27,472.80 = 10,955.78 : x
  2. Step 2: Convert to fraction form
    19,908.26/27,472.80 = 10,955.78/x
  3. Step 3: Cross multiply
    19,908.26x = 27,472.80 × 10,955.78
  4. Step 4: Simplify right side
    19,908.26x = 300,985,952.78
  5. Step 5: Solve for x
    x = 300,985,952.78/19,908.26
  6. Step 6: Final answer
    x = 15,118.65

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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.