Home / 18,535.19-27,802.72-5,387.88

Finding the Fourth Proportional to 18,535.19, 27,802.72 and 5,387.88

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Solution

The fourth proportional to 18,535.19, 27,802.72 and 5,387.88 is: 8,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,535.19 : 27,802.72 = 5,387.88 : x
  2. Step 2: Convert to fraction form
    18,535.19/27,802.72 = 5,387.88/x
  3. Step 3: Cross multiply
    18,535.19x = 27,802.72 × 5,387.88
  4. Step 4: Simplify right side
    18,535.19x = 149,797,692.09
  5. Step 5: Solve for x
    x = 149,797,692.09/18,535.19
  6. Step 6: Final answer
    x = 8,081.80

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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.