Home / 11,261.20-16,891.80-7,344.40

Finding the Fourth Proportional to 11,261.20, 16,891.80 and 7,344.40

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Solution

The fourth proportional to 11,261.20, 16,891.80 and 7,344.40 is: 11,016.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,261.20 : 16,891.80 = 7,344.40 : x
  2. Step 2: Convert to fraction form
    11,261.20/16,891.80 = 7,344.40/x
  3. Step 3: Cross multiply
    11,261.20x = 16,891.80 × 7,344.40
  4. Step 4: Simplify right side
    11,261.20x = 124,060,135.92
  5. Step 5: Solve for x
    x = 124,060,135.92/11,261.20
  6. Step 6: Final answer
    x = 11,016.60

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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.