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Finding the Fourth Proportional to 15,210.72, 22,815.73 and 6,884.71

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Solution

The fourth proportional to 15,210.72, 22,815.73 and 6,884.71 is: 10,326.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.72 : 22,815.73 = 6,884.71 : x
  2. Step 2: Convert to fraction form
    15,210.72/22,815.73 = 6,884.71/x
  3. Step 3: Cross multiply
    15,210.72x = 22,815.73 × 6,884.71
  4. Step 4: Simplify right side
    15,210.72x = 157,079,610.24
  5. Step 5: Solve for x
    x = 157,079,610.24/15,210.72
  6. Step 6: Final answer
    x = 10,326.90

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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.