Home / 15,382.17-21,227.41-8,308.60

Finding the Fourth Proportional to 15,382.17, 21,227.41 and 8,308.60

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Solution

The fourth proportional to 15,382.17, 21,227.41 and 8,308.60 is: 11,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,382.17 : 21,227.41 = 8,308.60 : x
  2. Step 2: Convert to fraction form
    15,382.17/21,227.41 = 8,308.60/x
  3. Step 3: Cross multiply
    15,382.17x = 21,227.41 × 8,308.60
  4. Step 4: Simplify right side
    15,382.17x = 176,370,058.73
  5. Step 5: Solve for x
    x = 176,370,058.73/15,382.17
  6. Step 6: Final answer
    x = 11,465.88

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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.