Home / 7,962.78-11,948.97-2,772.30

Finding the Fourth Proportional to 7,962.78, 11,948.97 and 2,772.30

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Solution

The fourth proportional to 7,962.78, 11,948.97 and 2,772.30 is: 4,160.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,962.78 : 11,948.97 = 2,772.30 : x
  2. Step 2: Convert to fraction form
    7,962.78/11,948.97 = 2,772.30/x
  3. Step 3: Cross multiply
    7,962.78x = 11,948.97 × 2,772.30
  4. Step 4: Simplify right side
    7,962.78x = 33,126,129.53
  5. Step 5: Solve for x
    x = 33,126,129.53/7,962.78
  6. Step 6: Final answer
    x = 4,160.12

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1.5x scale

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.