Home / 10,191.14-15,288.89-3,170.99

Finding the Fourth Proportional to 10,191.14, 15,288.89 and 3,170.99

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Solution

The fourth proportional to 10,191.14, 15,288.89 and 3,170.99 is: 4,757.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,191.14 : 15,288.89 = 3,170.99 : x
  2. Step 2: Convert to fraction form
    10,191.14/15,288.89 = 3,170.99/x
  3. Step 3: Cross multiply
    10,191.14x = 15,288.89 × 3,170.99
  4. Step 4: Simplify right side
    10,191.14x = 48,480,825.00
  5. Step 5: Solve for x
    x = 48,480,825.00/10,191.14
  6. Step 6: Final answer
    x = 4,757.15

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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.