Home / 10,091.46-15,137.20-3,166.50

Finding the Fourth Proportional to 10,091.46, 15,137.20 and 3,166.50

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Solution

The fourth proportional to 10,091.46, 15,137.20 and 3,166.50 is: 4,749.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.46 : 15,137.20 = 3,166.50 : x
  2. Step 2: Convert to fraction form
    10,091.46/15,137.20 = 3,166.50/x
  3. Step 3: Cross multiply
    10,091.46x = 15,137.20 × 3,166.50
  4. Step 4: Simplify right side
    10,091.46x = 47,931,943.80
  5. Step 5: Solve for x
    x = 47,931,943.80/10,091.46
  6. Step 6: Final answer
    x = 4,749.75

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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.