Home / 6,412.38-9,618.57-5,122.05

Finding the Fourth Proportional to 6,412.38, 9,618.57 and 5,122.05

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Solution

The fourth proportional to 6,412.38, 9,618.57 and 5,122.05 is: 7,683.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,412.38 : 9,618.57 = 5,122.05 : x
  2. Step 2: Convert to fraction form
    6,412.38/9,618.57 = 5,122.05/x
  3. Step 3: Cross multiply
    6,412.38x = 9,618.57 × 5,122.05
  4. Step 4: Simplify right side
    6,412.38x = 49,266,796.47
  5. Step 5: Solve for x
    x = 49,266,796.47/6,412.38
  6. Step 6: Final answer
    x = 7,683.08

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Half scale
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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.