Home / 10,399.74-15,601.64-3,378.44

Finding the Fourth Proportional to 10,399.74, 15,601.64 and 3,378.44

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Solution

The fourth proportional to 10,399.74, 15,601.64 and 3,378.44 is: 5,068.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,399.74 : 15,601.64 = 3,378.44 : x
  2. Step 2: Convert to fraction form
    10,399.74/15,601.64 = 3,378.44/x
  3. Step 3: Cross multiply
    10,399.74x = 15,601.64 × 3,378.44
  4. Step 4: Simplify right side
    10,399.74x = 52,709,204.64
  5. Step 5: Solve for x
    x = 52,709,204.64/10,399.74
  6. Step 6: Final answer
    x = 5,068.32

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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.