Home / 16,530.40-22,811.87-8,976.66

Finding the Fourth Proportional to 16,530.40, 22,811.87 and 8,976.66

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Solution

The fourth proportional to 16,530.40, 22,811.87 and 8,976.66 is: 12,387.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,530.40 : 22,811.87 = 8,976.66 : x
  2. Step 2: Convert to fraction form
    16,530.40/22,811.87 = 8,976.66/x
  3. Step 3: Cross multiply
    16,530.40x = 22,811.87 × 8,976.66
  4. Step 4: Simplify right side
    16,530.40x = 204,774,400.95
  5. Step 5: Solve for x
    x = 204,774,400.95/16,530.40
  6. Step 6: Final answer
    x = 12,387.75

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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.