Home / 18,439.35-27,655.22-5,288.79

Finding the Fourth Proportional to 18,439.35, 27,655.22 and 5,288.79

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Solution

The fourth proportional to 18,439.35, 27,655.22 and 5,288.79 is: 7,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439.35 : 27,655.22 = 5,288.79 : x
  2. Step 2: Convert to fraction form
    18,439.35/27,655.22 = 5,288.79/x
  3. Step 3: Cross multiply
    18,439.35x = 27,655.22 × 5,288.79
  4. Step 4: Simplify right side
    18,439.35x = 146,262,767.91
  5. Step 5: Solve for x
    x = 146,262,767.91/18,439.35
  6. Step 6: Final answer
    x = 7,932.10

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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.