Home / 10,186.92-15,275.34-3,612.12

Finding the Fourth Proportional to 10,186.92, 15,275.34 and 3,612.12

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Solution

The fourth proportional to 10,186.92, 15,275.34 and 3,612.12 is: 5,416.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,186.92 : 15,275.34 = 3,612.12 : x
  2. Step 2: Convert to fraction form
    10,186.92/15,275.34 = 3,612.12/x
  3. Step 3: Cross multiply
    10,186.92x = 15,275.34 × 3,612.12
  4. Step 4: Simplify right side
    10,186.92x = 55,176,361.12
  5. Step 5: Solve for x
    x = 55,176,361.12/10,186.92
  6. Step 6: Final answer
    x = 5,416.39

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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.