Home / 10,668.16-15,998.72-4,424.78

Finding the Fourth Proportional to 10,668.16, 15,998.72 and 4,424.78

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Solution

The fourth proportional to 10,668.16, 15,998.72 and 4,424.78 is: 6,635.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,668.16 : 15,998.72 = 4,424.78 : x
  2. Step 2: Convert to fraction form
    10,668.16/15,998.72 = 4,424.78/x
  3. Step 3: Cross multiply
    10,668.16x = 15,998.72 × 4,424.78
  4. Step 4: Simplify right side
    10,668.16x = 70,790,744.16
  5. Step 5: Solve for x
    x = 70,790,744.16/10,668.16
  6. Step 6: Final answer
    x = 6,635.71

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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.