Home / 19,937.66-27,513.68-11,439.60

Finding the Fourth Proportional to 19,937.66, 27,513.68 and 11,439.60

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Solution

The fourth proportional to 19,937.66, 27,513.68 and 11,439.60 is: 15,786.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937.66 : 27,513.68 = 11,439.60 : x
  2. Step 2: Convert to fraction form
    19,937.66/27,513.68 = 11,439.60/x
  3. Step 3: Cross multiply
    19,937.66x = 27,513.68 × 11,439.60
  4. Step 4: Simplify right side
    19,937.66x = 314,745,316.40
  5. Step 5: Solve for x
    x = 314,745,316.40/19,937.66
  6. Step 6: Final answer
    x = 15,786.47

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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.