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Finding the Fourth Proportional to 15,080.44, 20,811.06 and 8,366.20

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Solution

The fourth proportional to 15,080.44, 20,811.06 and 8,366.20 is: 11,545.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,080.44 : 20,811.06 = 8,366.20 : x
  2. Step 2: Convert to fraction form
    15,080.44/20,811.06 = 8,366.20/x
  3. Step 3: Cross multiply
    15,080.44x = 20,811.06 × 8,366.20
  4. Step 4: Simplify right side
    15,080.44x = 174,109,490.17
  5. Step 5: Solve for x
    x = 174,109,490.17/15,080.44
  6. Step 6: Final answer
    x = 11,545.39

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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.