Home / 14,649.76-21,982.53-9,721.72

Finding the Fourth Proportional to 14,649.76, 21,982.53 and 9,721.72

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Solution

The fourth proportional to 14,649.76, 21,982.53 and 9,721.72 is: 14,587.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.76 : 21,982.53 = 9,721.72 : x
  2. Step 2: Convert to fraction form
    14,649.76/21,982.53 = 9,721.72/x
  3. Step 3: Cross multiply
    14,649.76x = 21,982.53 × 9,721.72
  4. Step 4: Simplify right side
    14,649.76x = 213,707,891.64
  5. Step 5: Solve for x
    x = 213,707,891.64/14,649.76
  6. Step 6: Final answer
    x = 14,587.81

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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.