Home / 18,219.22-27,295.54-13,209.18

Finding the Fourth Proportional to 18,219.22, 27,295.54 and 13,209.18

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Solution

The fourth proportional to 18,219.22, 27,295.54 and 13,209.18 is: 19,789.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.22 : 27,295.54 = 13,209.18 : x
  2. Step 2: Convert to fraction form
    18,219.22/27,295.54 = 13,209.18/x
  3. Step 3: Cross multiply
    18,219.22x = 27,295.54 × 13,209.18
  4. Step 4: Simplify right side
    18,219.22x = 360,551,701.06
  5. Step 5: Solve for x
    x = 360,551,701.06/18,219.22
  6. Step 6: Final answer
    x = 19,789.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.