Home / 10,028.80-15,039.06-3,787.75

Finding the Fourth Proportional to 10,028.80, 15,039.06 and 3,787.75

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Solution

The fourth proportional to 10,028.80, 15,039.06 and 3,787.75 is: 5,680.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,028.80 : 15,039.06 = 3,787.75 : x
  2. Step 2: Convert to fraction form
    10,028.80/15,039.06 = 3,787.75/x
  3. Step 3: Cross multiply
    10,028.80x = 15,039.06 × 3,787.75
  4. Step 4: Simplify right side
    10,028.80x = 56,964,199.52
  5. Step 5: Solve for x
    x = 56,964,199.52/10,028.80
  6. Step 6: Final answer
    x = 5,680.06

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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.