Home / 9,621.62-14,438.28-3,778.28

Finding the Fourth Proportional to 9,621.62, 14,438.28 and 3,778.28

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Solution

The fourth proportional to 9,621.62, 14,438.28 and 3,778.28 is: 5,669.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,621.62 : 14,438.28 = 3,778.28 : x
  2. Step 2: Convert to fraction form
    9,621.62/14,438.28 = 3,778.28/x
  3. Step 3: Cross multiply
    9,621.62x = 14,438.28 × 3,778.28
  4. Step 4: Simplify right side
    9,621.62x = 54,551,864.56
  5. Step 5: Solve for x
    x = 54,551,864.56/9,621.62
  6. Step 6: Final answer
    x = 5,669.72

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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.