Home / 10,821.96-14,934.54-6,627.78

Finding the Fourth Proportional to 10,821.96, 14,934.54 and 6,627.78

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Solution

The fourth proportional to 10,821.96, 14,934.54 and 6,627.78 is: 9,146.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.96 : 14,934.54 = 6,627.78 : x
  2. Step 2: Convert to fraction form
    10,821.96/14,934.54 = 6,627.78/x
  3. Step 3: Cross multiply
    10,821.96x = 14,934.54 × 6,627.78
  4. Step 4: Simplify right side
    10,821.96x = 98,982,845.52
  5. Step 5: Solve for x
    x = 98,982,845.52/10,821.96
  6. Step 6: Final answer
    x = 9,146.48

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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.