Home / 10,112.23-15,176.85-5,186.62

Finding the Fourth Proportional to 10,112.23, 15,176.85 and 5,186.62

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Solution

The fourth proportional to 10,112.23, 15,176.85 and 5,186.62 is: 7,784.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.23 : 15,176.85 = 5,186.62 : x
  2. Step 2: Convert to fraction form
    10,112.23/15,176.85 = 5,186.62/x
  3. Step 3: Cross multiply
    10,112.23x = 15,176.85 × 5,186.62
  4. Step 4: Simplify right side
    10,112.23x = 78,716,553.75
  5. Step 5: Solve for x
    x = 78,716,553.75/10,112.23
  6. Step 6: Final answer
    x = 7,784.29

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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.