Home / 10,721.14-16,079.75-2,929.88

Finding the Fourth Proportional to 10,721.14, 16,079.75 and 2,929.88

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Solution

The fourth proportional to 10,721.14, 16,079.75 and 2,929.88 is: 4,394.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.14 : 16,079.75 = 2,929.88 : x
  2. Step 2: Convert to fraction form
    10,721.14/16,079.75 = 2,929.88/x
  3. Step 3: Cross multiply
    10,721.14x = 16,079.75 × 2,929.88
  4. Step 4: Simplify right side
    10,721.14x = 47,111,774.47
  5. Step 5: Solve for x
    x = 47,111,774.47/10,721.14
  6. Step 6: Final answer
    x = 4,394.29

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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.