Home / 11,997.42-18,000.27-4,981.20

Finding the Fourth Proportional to 11,997.42, 18,000.27 and 4,981.20

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Solution

The fourth proportional to 11,997.42, 18,000.27 and 4,981.20 is: 7,473.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,997.42 : 18,000.27 = 4,981.20 : x
  2. Step 2: Convert to fraction form
    11,997.42/18,000.27 = 4,981.20/x
  3. Step 3: Cross multiply
    11,997.42x = 18,000.27 × 4,981.20
  4. Step 4: Simplify right side
    11,997.42x = 89,662,944.92
  5. Step 5: Solve for x
    x = 89,662,944.92/11,997.42
  6. Step 6: Final answer
    x = 7,473.52

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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.