Home / 18,387.68-27,586.12-5,908.80

Finding the Fourth Proportional to 18,387.68, 27,586.12 and 5,908.80

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Solution

The fourth proportional to 18,387.68, 27,586.12 and 5,908.80 is: 8,864.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.68 : 27,586.12 = 5,908.80 : x
  2. Step 2: Convert to fraction form
    18,387.68/27,586.12 = 5,908.80/x
  3. Step 3: Cross multiply
    18,387.68x = 27,586.12 × 5,908.80
  4. Step 4: Simplify right side
    18,387.68x = 163,000,865.86
  5. Step 5: Solve for x
    x = 163,000,865.86/18,387.68
  6. Step 6: Final answer
    x = 8,864.68

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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.