Home / 10,228.14-15,334.38-3,987.23

Finding the Fourth Proportional to 10,228.14, 15,334.38 and 3,987.23

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Solution

The fourth proportional to 10,228.14, 15,334.38 and 3,987.23 is: 5,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,228.14 : 15,334.38 = 3,987.23 : x
  2. Step 2: Convert to fraction form
    10,228.14/15,334.38 = 3,987.23/x
  3. Step 3: Cross multiply
    10,228.14x = 15,334.38 × 3,987.23
  4. Step 4: Simplify right side
    10,228.14x = 61,141,623.30
  5. Step 5: Solve for x
    x = 61,141,623.30/10,228.14
  6. Step 6: Final answer
    x = 5,977.79

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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.