Home / 11,442.60-15,796.20-8,611.08

Finding the Fourth Proportional to 11,442.60, 15,796.20 and 8,611.08

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Solution

The fourth proportional to 11,442.60, 15,796.20 and 8,611.08 is: 11,887.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,442.60 : 15,796.20 = 8,611.08 : x
  2. Step 2: Convert to fraction form
    11,442.60/15,796.20 = 8,611.08/x
  3. Step 3: Cross multiply
    11,442.60x = 15,796.20 × 8,611.08
  4. Step 4: Simplify right side
    11,442.60x = 136,022,341.90
  5. Step 5: Solve for x
    x = 136,022,341.90/11,442.60
  6. Step 6: Final answer
    x = 11,887.36

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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.