Home / 19,863.76-27,412.29-10,911.64

Finding the Fourth Proportional to 19,863.76, 27,412.29 and 10,911.64

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Solution

The fourth proportional to 19,863.76, 27,412.29 and 10,911.64 is: 15,058.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.76 : 27,412.29 = 10,911.64 : x
  2. Step 2: Convert to fraction form
    19,863.76/27,412.29 = 10,911.64/x
  3. Step 3: Cross multiply
    19,863.76x = 27,412.29 × 10,911.64
  4. Step 4: Simplify right side
    19,863.76x = 299,113,040.06
  5. Step 5: Solve for x
    x = 299,113,040.06/19,863.76
  6. Step 6: Final answer
    x = 15,058.23

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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.