Home / 19,863.61-27,411.79-10,911.26

Finding the Fourth Proportional to 19,863.61, 27,411.79 and 10,911.26

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Solution

The fourth proportional to 19,863.61, 27,411.79 and 10,911.26 is: 15,057.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.61 : 27,411.79 = 10,911.26 : x
  2. Step 2: Convert to fraction form
    19,863.61/27,411.79 = 10,911.26/x
  3. Step 3: Cross multiply
    19,863.61x = 27,411.79 × 10,911.26
  4. Step 4: Simplify right side
    19,863.61x = 299,097,209.01
  5. Step 5: Solve for x
    x = 299,097,209.01/19,863.61
  6. Step 6: Final answer
    x = 15,057.55

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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.