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Finding the Fourth Proportional to 8,325.78, 12,493.48 and 4,627.70

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Solution

The fourth proportional to 8,325.78, 12,493.48 and 4,627.70 is: 6,944.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325.78 : 12,493.48 = 4,627.70 : x
  2. Step 2: Convert to fraction form
    8,325.78/12,493.48 = 4,627.70/x
  3. Step 3: Cross multiply
    8,325.78x = 12,493.48 × 4,627.70
  4. Step 4: Simplify right side
    8,325.78x = 57,816,077.40
  5. Step 5: Solve for x
    x = 57,816,077.40/8,325.78
  6. Step 6: Final answer
    x = 6,944.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.