Home / 12,331.06-18,499.70-3,565.92

Finding the Fourth Proportional to 12,331.06, 18,499.70 and 3,565.92

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Solution

The fourth proportional to 12,331.06, 18,499.70 and 3,565.92 is: 5,349.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.06 : 18,499.70 = 3,565.92 : x
  2. Step 2: Convert to fraction form
    12,331.06/18,499.70 = 3,565.92/x
  3. Step 3: Cross multiply
    12,331.06x = 18,499.70 × 3,565.92
  4. Step 4: Simplify right side
    12,331.06x = 65,968,450.22
  5. Step 5: Solve for x
    x = 65,968,450.22/12,331.06
  6. Step 6: Final answer
    x = 5,349.78

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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.