Home / 9,986.14-14,979.21-3,412.38

Finding the Fourth Proportional to 9,986.14, 14,979.21 and 3,412.38

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Solution

The fourth proportional to 9,986.14, 14,979.21 and 3,412.38 is: 5,118.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.14 : 14,979.21 = 3,412.38 : x
  2. Step 2: Convert to fraction form
    9,986.14/14,979.21 = 3,412.38/x
  3. Step 3: Cross multiply
    9,986.14x = 14,979.21 × 3,412.38
  4. Step 4: Simplify right side
    9,986.14x = 51,114,819.19
  5. Step 5: Solve for x
    x = 51,114,819.19/9,986.14
  6. Step 6: Final answer
    x = 5,118.58

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Similar ratio
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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.