Home / 19,811.61-27,338.45-11,426.49

Finding the Fourth Proportional to 19,811.61, 27,338.45 and 11,426.49

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Solution

The fourth proportional to 19,811.61, 27,338.45 and 11,426.49 is: 15,767.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.61 : 27,338.45 = 11,426.49 : x
  2. Step 2: Convert to fraction form
    19,811.61/27,338.45 = 11,426.49/x
  3. Step 3: Cross multiply
    19,811.61x = 27,338.45 × 11,426.49
  4. Step 4: Simplify right side
    19,811.61x = 312,382,525.54
  5. Step 5: Solve for x
    x = 312,382,525.54/19,811.61
  6. Step 6: Final answer
    x = 15,767.65

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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.