Home / 7,338.28-10,135.62-5,345.64

Finding the Fourth Proportional to 7,338.28, 10,135.62 and 5,345.64

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Solution

The fourth proportional to 7,338.28, 10,135.62 and 5,345.64 is: 7,383.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.28 : 10,135.62 = 5,345.64 : x
  2. Step 2: Convert to fraction form
    7,338.28/10,135.62 = 5,345.64/x
  3. Step 3: Cross multiply
    7,338.28x = 10,135.62 × 5,345.64
  4. Step 4: Simplify right side
    7,338.28x = 54,181,375.70
  5. Step 5: Solve for x
    x = 54,181,375.70/7,338.28
  6. Step 6: Final answer
    x = 7,383.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.