Home / 18,727.62-28,095.47-5,581.05

Finding the Fourth Proportional to 18,727.62, 28,095.47 and 5,581.05

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Solution

The fourth proportional to 18,727.62, 28,095.47 and 5,581.05 is: 8,372.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.62 : 28,095.47 = 5,581.05 : x
  2. Step 2: Convert to fraction form
    18,727.62/28,095.47 = 5,581.05/x
  3. Step 3: Cross multiply
    18,727.62x = 28,095.47 × 5,581.05
  4. Step 4: Simplify right side
    18,727.62x = 156,802,222.84
  5. Step 5: Solve for x
    x = 156,802,222.84/18,727.62
  6. Step 6: Final answer
    x = 8,372.78

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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.