Home / 13,197.32-18,200.66-8,160.74

Finding the Fourth Proportional to 13,197.32, 18,200.66 and 8,160.74

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Solution

The fourth proportional to 13,197.32, 18,200.66 and 8,160.74 is: 11,254.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.32 : 18,200.66 = 8,160.74 : x
  2. Step 2: Convert to fraction form
    13,197.32/18,200.66 = 8,160.74/x
  3. Step 3: Cross multiply
    13,197.32x = 18,200.66 × 8,160.74
  4. Step 4: Simplify right side
    13,197.32x = 148,530,854.09
  5. Step 5: Solve for x
    x = 148,530,854.09/13,197.32
  6. Step 6: Final answer
    x = 11,254.62

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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.