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Finding the Fourth Proportional to 8,752, 12,078.48 and 5,026.72

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Solution

The fourth proportional to 8,752, 12,078.48 and 5,026.72 is: 6,937.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752 : 12,078.48 = 5,026.72 : x
  2. Step 2: Convert to fraction form
    8,752/12,078.48 = 5,026.72/x
  3. Step 3: Cross multiply
    8,752x = 12,078.48 × 5,026.72
  4. Step 4: Simplify right side
    8,752x = 60,715,136.99
  5. Step 5: Solve for x
    x = 60,715,136.99/8,752
  6. Step 6: Final answer
    x = 6,937.29

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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.