Home / 18,385.51-27,568.18-8,519.35

Finding the Fourth Proportional to 18,385.51, 27,568.18 and 8,519.35

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Solution

The fourth proportional to 18,385.51, 27,568.18 and 8,519.35 is: 12,774.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.51 : 27,568.18 = 8,519.35 : x
  2. Step 2: Convert to fraction form
    18,385.51/27,568.18 = 8,519.35/x
  3. Step 3: Cross multiply
    18,385.51x = 27,568.18 × 8,519.35
  4. Step 4: Simplify right side
    18,385.51x = 234,862,974.28
  5. Step 5: Solve for x
    x = 234,862,974.28/18,385.51
  6. Step 6: Final answer
    x = 12,774.35

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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.