Home / 7,338.08-10,132.40-6,778.36

Finding the Fourth Proportional to 7,338.08, 10,132.40 and 6,778.36

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Solution

The fourth proportional to 7,338.08, 10,132.40 and 6,778.36 is: 9,359.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.08 : 10,132.40 = 6,778.36 : x
  2. Step 2: Convert to fraction form
    7,338.08/10,132.40 = 6,778.36/x
  3. Step 3: Cross multiply
    7,338.08x = 10,132.40 × 6,778.36
  4. Step 4: Simplify right side
    7,338.08x = 68,681,054.86
  5. Step 5: Solve for x
    x = 68,681,054.86/7,338.08
  6. Step 6: Final answer
    x = 9,359.54

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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.