Home / 15,910.20-23,858.82-7,142.76

Finding the Fourth Proportional to 15,910.20, 23,858.82 and 7,142.76

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Solution

The fourth proportional to 15,910.20, 23,858.82 and 7,142.76 is: 10,711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.20 : 23,858.82 = 7,142.76 : x
  2. Step 2: Convert to fraction form
    15,910.20/23,858.82 = 7,142.76/x
  3. Step 3: Cross multiply
    15,910.20x = 23,858.82 × 7,142.76
  4. Step 4: Simplify right side
    15,910.20x = 170,417,825.14
  5. Step 5: Solve for x
    x = 170,417,825.14/15,910.20
  6. Step 6: Final answer
    x = 10,711.23

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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.