Home / 18,266.76-27,403.34-7,878.92

Finding the Fourth Proportional to 18,266.76, 27,403.34 and 7,878.92

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Solution

The fourth proportional to 18,266.76, 27,403.34 and 7,878.92 is: 11,819.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.76 : 27,403.34 = 7,878.92 : x
  2. Step 2: Convert to fraction form
    18,266.76/27,403.34 = 7,878.92/x
  3. Step 3: Cross multiply
    18,266.76x = 27,403.34 × 7,878.92
  4. Step 4: Simplify right side
    18,266.76x = 215,908,723.59
  5. Step 5: Solve for x
    x = 215,908,723.59/18,266.76
  6. Step 6: Final answer
    x = 11,819.76

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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.