Home / 10,021.56-15,040.98-3,869.88

Finding the Fourth Proportional to 10,021.56, 15,040.98 and 3,869.88

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Solution

The fourth proportional to 10,021.56, 15,040.98 and 3,869.88 is: 5,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.56 : 15,040.98 = 3,869.88 : x
  2. Step 2: Convert to fraction form
    10,021.56/15,040.98 = 3,869.88/x
  3. Step 3: Cross multiply
    10,021.56x = 15,040.98 × 3,869.88
  4. Step 4: Simplify right side
    10,021.56x = 58,206,787.68
  5. Step 5: Solve for x
    x = 58,206,787.68/10,021.56
  6. Step 6: Final answer
    x = 5,808.16

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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.