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Finding the Fourth Proportional to 7,863.10, 10,850.18 and 4,505

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Solution

The fourth proportional to 7,863.10, 10,850.18 and 4,505 is: 6,216.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.10 : 10,850.18 = 4,505 : x
  2. Step 2: Convert to fraction form
    7,863.10/10,850.18 = 4,505/x
  3. Step 3: Cross multiply
    7,863.10x = 10,850.18 × 4,505
  4. Step 4: Simplify right side
    7,863.10x = 48,880,060.90
  5. Step 5: Solve for x
    x = 48,880,060.90/7,863.10
  6. Step 6: Final answer
    x = 6,216.39

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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.