Home / 10,116.82-15,177.64-3,191.32

Finding the Fourth Proportional to 10,116.82, 15,177.64 and 3,191.32

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Solution

The fourth proportional to 10,116.82, 15,177.64 and 3,191.32 is: 4,787.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,116.82 : 15,177.64 = 3,191.32 : x
  2. Step 2: Convert to fraction form
    10,116.82/15,177.64 = 3,191.32/x
  3. Step 3: Cross multiply
    10,116.82x = 15,177.64 × 3,191.32
  4. Step 4: Simplify right side
    10,116.82x = 48,436,706.08
  5. Step 5: Solve for x
    x = 48,436,706.08/10,116.82
  6. Step 6: Final answer
    x = 4,787.74

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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.