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Finding the Fourth Proportional to 8,886.40, 12,250.56 and 6,893.44

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Solution

The fourth proportional to 8,886.40, 12,250.56 and 6,893.44 is: 9,503.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.40 : 12,250.56 = 6,893.44 : x
  2. Step 2: Convert to fraction form
    8,886.40/12,250.56 = 6,893.44/x
  3. Step 3: Cross multiply
    8,886.40x = 12,250.56 × 6,893.44
  4. Step 4: Simplify right side
    8,886.40x = 84,448,500.33
  5. Step 5: Solve for x
    x = 84,448,500.33/8,886.40
  6. Step 6: Final answer
    x = 9,503.12

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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.