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Finding the Fourth Proportional to 8,793.90, 13,154.40 and 7,481.70

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Solution

The fourth proportional to 8,793.90, 13,154.40 and 7,481.70 is: 11,191.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.90 : 13,154.40 = 7,481.70 : x
  2. Step 2: Convert to fraction form
    8,793.90/13,154.40 = 7,481.70/x
  3. Step 3: Cross multiply
    8,793.90x = 13,154.40 × 7,481.70
  4. Step 4: Simplify right side
    8,793.90x = 98,417,274.48
  5. Step 5: Solve for x
    x = 98,417,274.48/8,793.90
  6. Step 6: Final answer
    x = 11,191.54

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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.