Home / 10,651.50-15,979.85-3,355.50

Finding the Fourth Proportional to 10,651.50, 15,979.85 and 3,355.50

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Solution

The fourth proportional to 10,651.50, 15,979.85 and 3,355.50 is: 5,034.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,651.50 : 15,979.85 = 3,355.50 : x
  2. Step 2: Convert to fraction form
    10,651.50/15,979.85 = 3,355.50/x
  3. Step 3: Cross multiply
    10,651.50x = 15,979.85 × 3,355.50
  4. Step 4: Simplify right side
    10,651.50x = 53,620,386.68
  5. Step 5: Solve for x
    x = 53,620,386.68/10,651.50
  6. Step 6: Final answer
    x = 5,034.07

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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.