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Finding the Fourth Proportional to 8,752.36, 12,076.38 and 5,216.74

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Solution

The fourth proportional to 8,752.36, 12,076.38 and 5,216.74 is: 7,197.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.36 : 12,076.38 = 5,216.74 : x
  2. Step 2: Convert to fraction form
    8,752.36/12,076.38 = 5,216.74/x
  3. Step 3: Cross multiply
    8,752.36x = 12,076.38 × 5,216.74
  4. Step 4: Simplify right side
    8,752.36x = 62,999,334.60
  5. Step 5: Solve for x
    x = 62,999,334.60/8,752.36
  6. Step 6: Final answer
    x = 7,197.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.