Home / 8,715.70-13,065.63-3,518.02

Finding the Fourth Proportional to 8,715.70, 13,065.63 and 3,518.02

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Solution

The fourth proportional to 8,715.70, 13,065.63 and 3,518.02 is: 5,273.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.70 : 13,065.63 = 3,518.02 : x
  2. Step 2: Convert to fraction form
    8,715.70/13,065.63 = 3,518.02/x
  3. Step 3: Cross multiply
    8,715.70x = 13,065.63 × 3,518.02
  4. Step 4: Simplify right side
    8,715.70x = 45,965,147.65
  5. Step 5: Solve for x
    x = 45,965,147.65/8,715.70
  6. Step 6: Final answer
    x = 5,273.83

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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.