Home / 10,115.92-15,150.57-9,765.69

Finding the Fourth Proportional to 10,115.92, 15,150.57 and 9,765.69

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Solution

The fourth proportional to 10,115.92, 15,150.57 and 9,765.69 is: 14,626.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.92 : 15,150.57 = 9,765.69 : x
  2. Step 2: Convert to fraction form
    10,115.92/15,150.57 = 9,765.69/x
  3. Step 3: Cross multiply
    10,115.92x = 15,150.57 × 9,765.69
  4. Step 4: Simplify right side
    10,115.92x = 147,955,769.94
  5. Step 5: Solve for x
    x = 147,955,769.94/10,115.92
  6. Step 6: Final answer
    x = 14,626.03

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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.