Home / 7,396.11-10,188.78-6,330.48

Finding the Fourth Proportional to 7,396.11, 10,188.78 and 6,330.48

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Solution

The fourth proportional to 7,396.11, 10,188.78 and 6,330.48 is: 8,720.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,396.11 : 10,188.78 = 6,330.48 : x
  2. Step 2: Convert to fraction form
    7,396.11/10,188.78 = 6,330.48/x
  3. Step 3: Cross multiply
    7,396.11x = 10,188.78 × 6,330.48
  4. Step 4: Simplify right side
    7,396.11x = 64,499,868.01
  5. Step 5: Solve for x
    x = 64,499,868.01/7,396.11
  6. Step 6: Final answer
    x = 8,720.78

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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.