Home / 10,116.71-15,175.08-3,191.75

Finding the Fourth Proportional to 10,116.71, 15,175.08 and 3,191.75

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Solution

The fourth proportional to 10,116.71, 15,175.08 and 3,191.75 is: 4,787.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,116.71 : 15,175.08 = 3,191.75 : x
  2. Step 2: Convert to fraction form
    10,116.71/15,175.08 = 3,191.75/x
  3. Step 3: Cross multiply
    10,116.71x = 15,175.08 × 3,191.75
  4. Step 4: Simplify right side
    10,116.71x = 48,435,061.59
  5. Step 5: Solve for x
    x = 48,435,061.59/10,116.71
  6. Step 6: Final answer
    x = 4,787.63

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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.