Home / 19,864.09-27,412.78-10,911.97

Finding the Fourth Proportional to 19,864.09, 27,412.78 and 10,911.97

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Solution

The fourth proportional to 19,864.09, 27,412.78 and 10,911.97 is: 15,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.09 : 27,412.78 = 10,911.97 : x
  2. Step 2: Convert to fraction form
    19,864.09/27,412.78 = 10,911.97/x
  3. Step 3: Cross multiply
    19,864.09x = 27,412.78 × 10,911.97
  4. Step 4: Simplify right side
    19,864.09x = 299,127,432.98
  5. Step 5: Solve for x
    x = 299,127,432.98/19,864.09
  6. Step 6: Final answer
    x = 15,058.70

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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.