Home / 11,109.60-15,327.60-6,634.08

Finding the Fourth Proportional to 11,109.60, 15,327.60 and 6,634.08

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Solution

The fourth proportional to 11,109.60, 15,327.60 and 6,634.08 is: 9,152.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.60 : 15,327.60 = 6,634.08 : x
  2. Step 2: Convert to fraction form
    11,109.60/15,327.60 = 6,634.08/x
  3. Step 3: Cross multiply
    11,109.60x = 15,327.60 × 6,634.08
  4. Step 4: Simplify right side
    11,109.60x = 101,684,524.61
  5. Step 5: Solve for x
    x = 101,684,524.61/11,109.60
  6. Step 6: Final answer
    x = 9,152.85

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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.