Home / 19,769.50-27,282.72-11,386

Finding the Fourth Proportional to 19,769.50, 27,282.72 and 11,386

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Solution

The fourth proportional to 19,769.50, 27,282.72 and 11,386 is: 15,713.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,769.50 : 27,282.72 = 11,386 : x
  2. Step 2: Convert to fraction form
    19,769.50/27,282.72 = 11,386/x
  3. Step 3: Cross multiply
    19,769.50x = 27,282.72 × 11,386
  4. Step 4: Simplify right side
    19,769.50x = 310,641,049.92
  5. Step 5: Solve for x
    x = 310,641,049.92/19,769.50
  6. Step 6: Final answer
    x = 15,713.15

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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.