Home / 19,864.71-27,405.66-11,365.11

Finding the Fourth Proportional to 19,864.71, 27,405.66 and 11,365.11

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Solution

The fourth proportional to 19,864.71, 27,405.66 and 11,365.11 is: 15,679.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.71 : 27,405.66 = 11,365.11 : x
  2. Step 2: Convert to fraction form
    19,864.71/27,405.66 = 11,365.11/x
  3. Step 3: Cross multiply
    19,864.71x = 27,405.66 × 11,365.11
  4. Step 4: Simplify right side
    19,864.71x = 311,468,340.52
  5. Step 5: Solve for x
    x = 311,468,340.52/19,864.71
  6. Step 6: Final answer
    x = 15,679.48

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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.