Home / 12,110.91-18,166.34-3,345.80

Finding the Fourth Proportional to 12,110.91, 18,166.34 and 3,345.80

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Solution

The fourth proportional to 12,110.91, 18,166.34 and 3,345.80 is: 5,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.91 : 18,166.34 = 3,345.80 : x
  2. Step 2: Convert to fraction form
    12,110.91/18,166.34 = 3,345.80/x
  3. Step 3: Cross multiply
    12,110.91x = 18,166.34 × 3,345.80
  4. Step 4: Simplify right side
    12,110.91x = 60,780,832.81
  5. Step 5: Solve for x
    x = 60,780,832.81/12,110.91
  6. Step 6: Final answer
    x = 5,018.68

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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.