Home / 10,305.28-15,419.62-6,147.55

Finding the Fourth Proportional to 10,305.28, 15,419.62 and 6,147.55

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Solution

The fourth proportional to 10,305.28, 15,419.62 and 6,147.55 is: 9,198.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.28 : 15,419.62 = 6,147.55 : x
  2. Step 2: Convert to fraction form
    10,305.28/15,419.62 = 6,147.55/x
  3. Step 3: Cross multiply
    10,305.28x = 15,419.62 × 6,147.55
  4. Step 4: Simplify right side
    10,305.28x = 94,792,884.93
  5. Step 5: Solve for x
    x = 94,792,884.93/10,305.28
  6. Step 6: Final answer
    x = 9,198.48

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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.