Home / 18,521.46-27,788.37-12,305.93

Finding the Fourth Proportional to 18,521.46, 27,788.37 and 12,305.93

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Solution

The fourth proportional to 18,521.46, 27,788.37 and 12,305.93 is: 18,462.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.46 : 27,788.37 = 12,305.93 : x
  2. Step 2: Convert to fraction form
    18,521.46/27,788.37 = 12,305.93/x
  3. Step 3: Cross multiply
    18,521.46x = 27,788.37 × 12,305.93
  4. Step 4: Simplify right side
    18,521.46x = 341,961,550.95
  5. Step 5: Solve for x
    x = 341,961,550.95/18,521.46
  6. Step 6: Final answer
    x = 18,462.99

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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.