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Finding the Fourth Proportional to 8,893.77, 12,272.87 and 5,114.28

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Solution

The fourth proportional to 8,893.77, 12,272.87 and 5,114.28 is: 7,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893.77 : 12,272.87 = 5,114.28 : x
  2. Step 2: Convert to fraction form
    8,893.77/12,272.87 = 5,114.28/x
  3. Step 3: Cross multiply
    8,893.77x = 12,272.87 × 5,114.28
  4. Step 4: Simplify right side
    8,893.77x = 62,766,868.01
  5. Step 5: Solve for x
    x = 62,766,868.01/8,893.77
  6. Step 6: Final answer
    x = 7,057.40

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1.5x scale

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.