Home / 18,215.82-27,302.40-8,356.05

Finding the Fourth Proportional to 18,215.82, 27,302.40 and 8,356.05

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Solution

The fourth proportional to 18,215.82, 27,302.40 and 8,356.05 is: 12,524.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.82 : 27,302.40 = 8,356.05 : x
  2. Step 2: Convert to fraction form
    18,215.82/27,302.40 = 8,356.05/x
  3. Step 3: Cross multiply
    18,215.82x = 27,302.40 × 8,356.05
  4. Step 4: Simplify right side
    18,215.82x = 228,140,219.52
  5. Step 5: Solve for x
    x = 228,140,219.52/18,215.82
  6. Step 6: Final answer
    x = 12,524.29

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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.