Home / 10,212.44-15,319.76-3,191.27

Finding the Fourth Proportional to 10,212.44, 15,319.76 and 3,191.27

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Solution

The fourth proportional to 10,212.44, 15,319.76 and 3,191.27 is: 4,787.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,212.44 : 15,319.76 = 3,191.27 : x
  2. Step 2: Convert to fraction form
    10,212.44/15,319.76 = 3,191.27/x
  3. Step 3: Cross multiply
    10,212.44x = 15,319.76 × 3,191.27
  4. Step 4: Simplify right side
    10,212.44x = 48,889,397.94
  5. Step 5: Solve for x
    x = 48,889,397.94/10,212.44
  6. Step 6: Final answer
    x = 4,787.24

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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.