Home / 11,909.40-16,436.24-7,193.56

Finding the Fourth Proportional to 11,909.40, 16,436.24 and 7,193.56

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Solution

The fourth proportional to 11,909.40, 16,436.24 and 7,193.56 is: 9,927.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.40 : 16,436.24 = 7,193.56 : x
  2. Step 2: Convert to fraction form
    11,909.40/16,436.24 = 7,193.56/x
  3. Step 3: Cross multiply
    11,909.40x = 16,436.24 × 7,193.56
  4. Step 4: Simplify right side
    11,909.40x = 118,235,078.61
  5. Step 5: Solve for x
    x = 118,235,078.61/11,909.40
  6. Step 6: Final answer
    x = 9,927.88

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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.