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Finding the Fourth Proportional to 11,468.80, 17,188.08 and 8,866.72

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Solution

The fourth proportional to 11,468.80, 17,188.08 and 8,866.72 is: 13,288.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,468.80 : 17,188.08 = 8,866.72 : x
  2. Step 2: Convert to fraction form
    11,468.80/17,188.08 = 8,866.72/x
  3. Step 3: Cross multiply
    11,468.80x = 17,188.08 × 8,866.72
  4. Step 4: Simplify right side
    11,468.80x = 152,401,892.70
  5. Step 5: Solve for x
    x = 152,401,892.70/11,468.80
  6. Step 6: Final answer
    x = 13,288.39

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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.