Home / 18,570.73-27,813.18-11,158.85

Finding the Fourth Proportional to 18,570.73, 27,813.18 and 11,158.85

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Solution

The fourth proportional to 18,570.73, 27,813.18 and 11,158.85 is: 16,712.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.73 : 27,813.18 = 11,158.85 : x
  2. Step 2: Convert to fraction form
    18,570.73/27,813.18 = 11,158.85/x
  3. Step 3: Cross multiply
    18,570.73x = 27,813.18 × 11,158.85
  4. Step 4: Simplify right side
    18,570.73x = 310,363,103.64
  5. Step 5: Solve for x
    x = 310,363,103.64/18,570.73
  6. Step 6: Final answer
    x = 16,712.49

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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.