Home / 19,769.95-27,281.71-11,816.56

Finding the Fourth Proportional to 19,769.95, 27,281.71 and 11,816.56

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Solution

The fourth proportional to 19,769.95, 27,281.71 and 11,816.56 is: 16,306.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,769.95 : 27,281.71 = 11,816.56 : x
  2. Step 2: Convert to fraction form
    19,769.95/27,281.71 = 11,816.56/x
  3. Step 3: Cross multiply
    19,769.95x = 27,281.71 × 11,816.56
  4. Step 4: Simplify right side
    19,769.95x = 322,375,963.12
  5. Step 5: Solve for x
    x = 322,375,963.12/19,769.95
  6. Step 6: Final answer
    x = 16,306.36

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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.