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Finding the Fourth Proportional to 8,966, 13,362.15 and 8,499.44

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Solution

The fourth proportional to 8,966, 13,362.15 and 8,499.44 is: 12,666.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966 : 13,362.15 = 8,499.44 : x
  2. Step 2: Convert to fraction form
    8,966/13,362.15 = 8,499.44/x
  3. Step 3: Cross multiply
    8,966x = 13,362.15 × 8,499.44
  4. Step 4: Simplify right side
    8,966x = 113,570,792.20
  5. Step 5: Solve for x
    x = 113,570,792.20/8,966
  6. Step 6: Final answer
    x = 12,666.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.