Home / 8,732.72-13,087.29-4,778.01

Finding the Fourth Proportional to 8,732.72, 13,087.29 and 4,778.01

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Solution

The fourth proportional to 8,732.72, 13,087.29 and 4,778.01 is: 7,160.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,732.72 : 13,087.29 = 4,778.01 : x
  2. Step 2: Convert to fraction form
    8,732.72/13,087.29 = 4,778.01/x
  3. Step 3: Cross multiply
    8,732.72x = 13,087.29 × 4,778.01
  4. Step 4: Simplify right side
    8,732.72x = 62,531,220.41
  5. Step 5: Solve for x
    x = 62,531,220.41/8,732.72
  6. Step 6: Final answer
    x = 7,160.56

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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.