Home / 10,131.16-15,193.84-3,890.76

Finding the Fourth Proportional to 10,131.16, 15,193.84 and 3,890.76

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Solution

The fourth proportional to 10,131.16, 15,193.84 and 3,890.76 is: 5,835.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.16 : 15,193.84 = 3,890.76 : x
  2. Step 2: Convert to fraction form
    10,131.16/15,193.84 = 3,890.76/x
  3. Step 3: Cross multiply
    10,131.16x = 15,193.84 × 3,890.76
  4. Step 4: Simplify right side
    10,131.16x = 59,115,584.92
  5. Step 5: Solve for x
    x = 59,115,584.92/10,131.16
  6. Step 6: Final answer
    x = 5,835.03

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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.