Home / 15,735.87-21,722.31-11,251.85

Finding the Fourth Proportional to 15,735.87, 21,722.31 and 11,251.85

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Solution

The fourth proportional to 15,735.87, 21,722.31 and 11,251.85 is: 15,532.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,735.87 : 21,722.31 = 11,251.85 : x
  2. Step 2: Convert to fraction form
    15,735.87/21,722.31 = 11,251.85/x
  3. Step 3: Cross multiply
    15,735.87x = 21,722.31 × 11,251.85
  4. Step 4: Simplify right side
    15,735.87x = 244,416,065.16
  5. Step 5: Solve for x
    x = 244,416,065.16/15,735.87
  6. Step 6: Final answer
    x = 15,532.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.