Home / 13,132.22-19,621.42-12,672.86

Finding the Fourth Proportional to 13,132.22, 19,621.42 and 12,672.86

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Solution

The fourth proportional to 13,132.22, 19,621.42 and 12,672.86 is: 18,935.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.22 : 19,621.42 = 12,672.86 : x
  2. Step 2: Convert to fraction form
    13,132.22/19,621.42 = 12,672.86/x
  3. Step 3: Cross multiply
    13,132.22x = 19,621.42 × 12,672.86
  4. Step 4: Simplify right side
    13,132.22x = 248,659,508.66
  5. Step 5: Solve for x
    x = 248,659,508.66/13,132.22
  6. Step 6: Final answer
    x = 18,935.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.