Home / 12,132.32-18,200.27-6,212.55

Finding the Fourth Proportional to 12,132.32, 18,200.27 and 6,212.55

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Solution

The fourth proportional to 12,132.32, 18,200.27 and 6,212.55 is: 9,319.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.32 : 18,200.27 = 6,212.55 : x
  2. Step 2: Convert to fraction form
    12,132.32/18,200.27 = 6,212.55/x
  3. Step 3: Cross multiply
    12,132.32x = 18,200.27 × 6,212.55
  4. Step 4: Simplify right side
    12,132.32x = 113,070,171.17
  5. Step 5: Solve for x
    x = 113,070,171.17/12,132.32
  6. Step 6: Final answer
    x = 9,319.75

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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.