Home / 18,099.72-24,954.48-12,121.92

Finding the Fourth Proportional to 18,099.72, 24,954.48 and 12,121.92

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Solution

The fourth proportional to 18,099.72, 24,954.48 and 12,121.92 is: 16,712.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,099.72 : 24,954.48 = 12,121.92 : x
  2. Step 2: Convert to fraction form
    18,099.72/24,954.48 = 12,121.92/x
  3. Step 3: Cross multiply
    18,099.72x = 24,954.48 × 12,121.92
  4. Step 4: Simplify right side
    18,099.72x = 302,496,210.20
  5. Step 5: Solve for x
    x = 302,496,210.20/18,099.72
  6. Step 6: Final answer
    x = 16,712.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.