Home / 18,378.14-27,557.12-8,511.98

Finding the Fourth Proportional to 18,378.14, 27,557.12 and 8,511.98

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Solution

The fourth proportional to 18,378.14, 27,557.12 and 8,511.98 is: 12,763.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.14 : 27,557.12 = 8,511.98 : x
  2. Step 2: Convert to fraction form
    18,378.14/27,557.12 = 8,511.98/x
  3. Step 3: Cross multiply
    18,378.14x = 27,557.12 × 8,511.98
  4. Step 4: Simplify right side
    18,378.14x = 234,565,537.79
  5. Step 5: Solve for x
    x = 234,565,537.79/18,378.14
  6. Step 6: Final answer
    x = 12,763.29

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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.