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Finding the Fourth Proportional to 7,893.45, 10,885.19 and 6,124.41

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Solution

The fourth proportional to 7,893.45, 10,885.19 and 6,124.41 is: 8,445.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893.45 : 10,885.19 = 6,124.41 : x
  2. Step 2: Convert to fraction form
    7,893.45/10,885.19 = 6,124.41/x
  3. Step 3: Cross multiply
    7,893.45x = 10,885.19 × 6,124.41
  4. Step 4: Simplify right side
    7,893.45x = 66,665,335.87
  5. Step 5: Solve for x
    x = 66,665,335.87/7,893.45
  6. Step 6: Final answer
    x = 8,445.65

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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.