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Finding the Fourth Proportional to 15,087.97, 22,631.86 and 8,206.21

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Solution

The fourth proportional to 15,087.97, 22,631.86 and 8,206.21 is: 12,309.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,087.97 : 22,631.86 = 8,206.21 : x
  2. Step 2: Convert to fraction form
    15,087.97/22,631.86 = 8,206.21/x
  3. Step 3: Cross multiply
    15,087.97x = 22,631.86 × 8,206.21
  4. Step 4: Simplify right side
    15,087.97x = 185,721,641.66
  5. Step 5: Solve for x
    x = 185,721,641.66/15,087.97
  6. Step 6: Final answer
    x = 12,309.26

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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.