Home / 9,872.28-14,788.85-5,185.22

Finding the Fourth Proportional to 9,872.28, 14,788.85 and 5,185.22

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Solution

The fourth proportional to 9,872.28, 14,788.85 and 5,185.22 is: 7,767.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,872.28 : 14,788.85 = 5,185.22 : x
  2. Step 2: Convert to fraction form
    9,872.28/14,788.85 = 5,185.22/x
  3. Step 3: Cross multiply
    9,872.28x = 14,788.85 × 5,185.22
  4. Step 4: Simplify right side
    9,872.28x = 76,683,340.93
  5. Step 5: Solve for x
    x = 76,683,340.93/9,872.28
  6. Step 6: Final answer
    x = 7,767.54

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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.