Home / 10,528.11-15,789.99-3,954.15

Finding the Fourth Proportional to 10,528.11, 15,789.99 and 3,954.15

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Solution

The fourth proportional to 10,528.11, 15,789.99 and 3,954.15 is: 5,930.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528.11 : 15,789.99 = 3,954.15 : x
  2. Step 2: Convert to fraction form
    10,528.11/15,789.99 = 3,954.15/x
  3. Step 3: Cross multiply
    10,528.11x = 15,789.99 × 3,954.15
  4. Step 4: Simplify right side
    10,528.11x = 62,435,988.96
  5. Step 5: Solve for x
    x = 62,435,988.96/10,528.11
  6. Step 6: Final answer
    x = 5,930.41

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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.