Home / 18,299.44-27,436.74-5,815.72

Finding the Fourth Proportional to 18,299.44, 27,436.74 and 5,815.72

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Solution

The fourth proportional to 18,299.44, 27,436.74 and 5,815.72 is: 8,719.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.44 : 27,436.74 = 5,815.72 : x
  2. Step 2: Convert to fraction form
    18,299.44/27,436.74 = 5,815.72/x
  3. Step 3: Cross multiply
    18,299.44x = 27,436.74 × 5,815.72
  4. Step 4: Simplify right side
    18,299.44x = 159,564,397.55
  5. Step 5: Solve for x
    x = 159,564,397.55/18,299.44
  6. Step 6: Final answer
    x = 8,719.63

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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.