Home / 18,863.24-28,302.14-5,715.72

Finding the Fourth Proportional to 18,863.24, 28,302.14 and 5,715.72

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Solution

The fourth proportional to 18,863.24, 28,302.14 and 5,715.72 is: 8,575.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863.24 : 28,302.14 = 5,715.72 : x
  2. Step 2: Convert to fraction form
    18,863.24/28,302.14 = 5,715.72/x
  3. Step 3: Cross multiply
    18,863.24x = 28,302.14 × 5,715.72
  4. Step 4: Simplify right side
    18,863.24x = 161,767,107.64
  5. Step 5: Solve for x
    x = 161,767,107.64/18,863.24
  6. Step 6: Final answer
    x = 8,575.79

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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.