Home / 18,145.83-27,219.69-4,997.91

Finding the Fourth Proportional to 18,145.83, 27,219.69 and 4,997.91

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Solution

The fourth proportional to 18,145.83, 27,219.69 and 4,997.91 is: 7,497.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.83 : 27,219.69 = 4,997.91 : x
  2. Step 2: Convert to fraction form
    18,145.83/27,219.69 = 4,997.91/x
  3. Step 3: Cross multiply
    18,145.83x = 27,219.69 × 4,997.91
  4. Step 4: Simplify right side
    18,145.83x = 136,041,560.85
  5. Step 5: Solve for x
    x = 136,041,560.85/18,145.83
  6. Step 6: Final answer
    x = 7,497.13

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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.