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Finding the Fourth Proportional to 8,808.10, 13,214.40 and 5,103.70

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Solution

The fourth proportional to 8,808.10, 13,214.40 and 5,103.70 is: 7,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.10 : 13,214.40 = 5,103.70 : x
  2. Step 2: Convert to fraction form
    8,808.10/13,214.40 = 5,103.70/x
  3. Step 3: Cross multiply
    8,808.10x = 13,214.40 × 5,103.70
  4. Step 4: Simplify right side
    8,808.10x = 67,442,333.28
  5. Step 5: Solve for x
    x = 67,442,333.28/8,808.10
  6. Step 6: Final answer
    x = 7,656.85

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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.