Home / 15,181.41-20,952.17-8,893.78

Finding the Fourth Proportional to 15,181.41, 20,952.17 and 8,893.78

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Solution

The fourth proportional to 15,181.41, 20,952.17 and 8,893.78 is: 12,274.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,181.41 : 20,952.17 = 8,893.78 : x
  2. Step 2: Convert to fraction form
    15,181.41/20,952.17 = 8,893.78/x
  3. Step 3: Cross multiply
    15,181.41x = 20,952.17 × 8,893.78
  4. Step 4: Simplify right side
    15,181.41x = 186,344,005.58
  5. Step 5: Solve for x
    x = 186,344,005.58/15,181.41
  6. Step 6: Final answer
    x = 12,274.49

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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.