Home / 15,109.27-20,850.83-8,395.32

Finding the Fourth Proportional to 15,109.27, 20,850.83 and 8,395.32

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Solution

The fourth proportional to 15,109.27, 20,850.83 and 8,395.32 is: 11,585.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,109.27 : 20,850.83 = 8,395.32 : x
  2. Step 2: Convert to fraction form
    15,109.27/20,850.83 = 8,395.32/x
  3. Step 3: Cross multiply
    15,109.27x = 20,850.83 × 8,395.32
  4. Step 4: Simplify right side
    15,109.27x = 175,049,390.12
  5. Step 5: Solve for x
    x = 175,049,390.12/15,109.27
  6. Step 6: Final answer
    x = 11,585.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.