Home / 7,422.30-11,133.78-4,132.90

Finding the Fourth Proportional to 7,422.30, 11,133.78 and 4,132.90

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Solution

The fourth proportional to 7,422.30, 11,133.78 and 4,132.90 is: 6,199.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.30 : 11,133.78 = 4,132.90 : x
  2. Step 2: Convert to fraction form
    7,422.30/11,133.78 = 4,132.90/x
  3. Step 3: Cross multiply
    7,422.30x = 11,133.78 × 4,132.90
  4. Step 4: Simplify right side
    7,422.30x = 46,014,799.36
  5. Step 5: Solve for x
    x = 46,014,799.36/7,422.30
  6. Step 6: Final answer
    x = 6,199.53

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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.