Home / 10,072.35-15,120.68-5,633.55

Finding the Fourth Proportional to 10,072.35, 15,120.68 and 5,633.55

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Solution

The fourth proportional to 10,072.35, 15,120.68 and 5,633.55 is: 8,457.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,072.35 : 15,120.68 = 5,633.55 : x
  2. Step 2: Convert to fraction form
    10,072.35/15,120.68 = 5,633.55/x
  3. Step 3: Cross multiply
    10,072.35x = 15,120.68 × 5,633.55
  4. Step 4: Simplify right side
    10,072.35x = 85,183,078.65
  5. Step 5: Solve for x
    x = 85,183,078.65/10,072.35
  6. Step 6: Final answer
    x = 8,457.12

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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.