Home / 7,962.72-11,943.60-3,281.28

Finding the Fourth Proportional to 7,962.72, 11,943.60 and 3,281.28

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Solution

The fourth proportional to 7,962.72, 11,943.60 and 3,281.28 is: 4,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,962.72 : 11,943.60 = 3,281.28 : x
  2. Step 2: Convert to fraction form
    7,962.72/11,943.60 = 3,281.28/x
  3. Step 3: Cross multiply
    7,962.72x = 11,943.60 × 3,281.28
  4. Step 4: Simplify right side
    7,962.72x = 39,190,295.81
  5. Step 5: Solve for x
    x = 39,190,295.81/7,962.72
  6. Step 6: Final answer
    x = 4,921.72

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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.