Home / 13,891.83-19,169.04-11,066.40

Finding the Fourth Proportional to 13,891.83, 19,169.04 and 11,066.40

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Solution

The fourth proportional to 13,891.83, 19,169.04 and 11,066.40 is: 15,270.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.83 : 19,169.04 = 11,066.40 : x
  2. Step 2: Convert to fraction form
    13,891.83/19,169.04 = 11,066.40/x
  3. Step 3: Cross multiply
    13,891.83x = 19,169.04 × 11,066.40
  4. Step 4: Simplify right side
    13,891.83x = 212,132,264.26
  5. Step 5: Solve for x
    x = 212,132,264.26/13,891.83
  6. Step 6: Final answer
    x = 15,270.29

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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.