Home / 8,427.78-11,630.88-5,070.60

Finding the Fourth Proportional to 8,427.78, 11,630.88 and 5,070.60

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Solution

The fourth proportional to 8,427.78, 11,630.88 and 5,070.60 is: 6,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.78 : 11,630.88 = 5,070.60 : x
  2. Step 2: Convert to fraction form
    8,427.78/11,630.88 = 5,070.60/x
  3. Step 3: Cross multiply
    8,427.78x = 11,630.88 × 5,070.60
  4. Step 4: Simplify right side
    8,427.78x = 58,975,540.13
  5. Step 5: Solve for x
    x = 58,975,540.13/8,427.78
  6. Step 6: Final answer
    x = 6,997.76

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1.5x scale

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.