Home / 19,722.91-27,216.55-11,549.01

Finding the Fourth Proportional to 19,722.91, 27,216.55 and 11,549.01

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Solution

The fourth proportional to 19,722.91, 27,216.55 and 11,549.01 is: 15,937.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.91 : 27,216.55 = 11,549.01 : x
  2. Step 2: Convert to fraction form
    19,722.91/27,216.55 = 11,549.01/x
  3. Step 3: Cross multiply
    19,722.91x = 27,216.55 × 11,549.01
  4. Step 4: Simplify right side
    19,722.91x = 314,324,208.12
  5. Step 5: Solve for x
    x = 314,324,208.12/19,722.91
  6. Step 6: Final answer
    x = 15,937.01

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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.