Home / 8,768.47-13,144.88-3,220.53

Finding the Fourth Proportional to 8,768.47, 13,144.88 and 3,220.53

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Solution

The fourth proportional to 8,768.47, 13,144.88 and 3,220.53 is: 4,827.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.47 : 13,144.88 = 3,220.53 : x
  2. Step 2: Convert to fraction form
    8,768.47/13,144.88 = 3,220.53/x
  3. Step 3: Cross multiply
    8,768.47x = 13,144.88 × 3,220.53
  4. Step 4: Simplify right side
    8,768.47x = 42,333,480.39
  5. Step 5: Solve for x
    x = 42,333,480.39/8,768.47
  6. Step 6: Final answer
    x = 4,827.92

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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.