Home / 18,568.86-27,850.55-5,417.70

Finding the Fourth Proportional to 18,568.86, 27,850.55 and 5,417.70

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Solution

The fourth proportional to 18,568.86, 27,850.55 and 5,417.70 is: 8,125.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,568.86 : 27,850.55 = 5,417.70 : x
  2. Step 2: Convert to fraction form
    18,568.86/27,850.55 = 5,417.70/x
  3. Step 3: Cross multiply
    18,568.86x = 27,850.55 × 5,417.70
  4. Step 4: Simplify right side
    18,568.86x = 150,885,924.74
  5. Step 5: Solve for x
    x = 150,885,924.74/18,568.86
  6. Step 6: Final answer
    x = 8,125.75

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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.