Home / 10,215.16-15,322.77-3,195.22

Finding the Fourth Proportional to 10,215.16, 15,322.77 and 3,195.22

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Solution

The fourth proportional to 10,215.16, 15,322.77 and 3,195.22 is: 4,792.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.16 : 15,322.77 = 3,195.22 : x
  2. Step 2: Convert to fraction form
    10,215.16/15,322.77 = 3,195.22/x
  3. Step 3: Cross multiply
    10,215.16x = 15,322.77 × 3,195.22
  4. Step 4: Simplify right side
    10,215.16x = 48,959,654.68
  5. Step 5: Solve for x
    x = 48,959,654.68/10,215.16
  6. Step 6: Final answer
    x = 4,792.84

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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.