Home / 10,194.96-15,275.16-8,121.36

Finding the Fourth Proportional to 10,194.96, 15,275.16 and 8,121.36

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Solution

The fourth proportional to 10,194.96, 15,275.16 and 8,121.36 is: 12,168.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,194.96 : 15,275.16 = 8,121.36 : x
  2. Step 2: Convert to fraction form
    10,194.96/15,275.16 = 8,121.36/x
  3. Step 3: Cross multiply
    10,194.96x = 15,275.16 × 8,121.36
  4. Step 4: Simplify right side
    10,194.96x = 124,055,073.42
  5. Step 5: Solve for x
    x = 124,055,073.42/10,194.96
  6. Step 6: Final answer
    x = 12,168.27

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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.