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Finding the Fourth Proportional to 8,858.20, 13,298.10 and 8,793.40

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Solution

The fourth proportional to 8,858.20, 13,298.10 and 8,793.40 is: 13,200.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.20 : 13,298.10 = 8,793.40 : x
  2. Step 2: Convert to fraction form
    8,858.20/13,298.10 = 8,793.40/x
  3. Step 3: Cross multiply
    8,858.20x = 13,298.10 × 8,793.40
  4. Step 4: Simplify right side
    8,858.20x = 116,935,512.54
  5. Step 5: Solve for x
    x = 116,935,512.54/8,858.20
  6. Step 6: Final answer
    x = 13,200.82

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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.