Home / 10,888.20-16,328.73-6,721.95

Finding the Fourth Proportional to 10,888.20, 16,328.73 and 6,721.95

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Solution

The fourth proportional to 10,888.20, 16,328.73 and 6,721.95 is: 10,080.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.20 : 16,328.73 = 6,721.95 : x
  2. Step 2: Convert to fraction form
    10,888.20/16,328.73 = 6,721.95/x
  3. Step 3: Cross multiply
    10,888.20x = 16,328.73 × 6,721.95
  4. Step 4: Simplify right side
    10,888.20x = 109,760,906.62
  5. Step 5: Solve for x
    x = 109,760,906.62/10,888.20
  6. Step 6: Final answer
    x = 10,080.72

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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.