Home / 12,331.14-18,508.79-8,327.98

Finding the Fourth Proportional to 12,331.14, 18,508.79 and 8,327.98

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Solution

The fourth proportional to 12,331.14, 18,508.79 and 8,327.98 is: 12,500.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.14 : 18,508.79 = 8,327.98 : x
  2. Step 2: Convert to fraction form
    12,331.14/18,508.79 = 8,327.98/x
  3. Step 3: Cross multiply
    12,331.14x = 18,508.79 × 8,327.98
  4. Step 4: Simplify right side
    12,331.14x = 154,140,832.94
  5. Step 5: Solve for x
    x = 154,140,832.94/12,331.14
  6. Step 6: Final answer
    x = 12,500.13

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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.