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Finding the Fourth Proportional to 11,232.80, 16,816.80 and 10,066.40

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Solution

The fourth proportional to 11,232.80, 16,816.80 and 10,066.40 is: 15,070.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,232.80 : 16,816.80 = 10,066.40 : x
  2. Step 2: Convert to fraction form
    11,232.80/16,816.80 = 10,066.40/x
  3. Step 3: Cross multiply
    11,232.80x = 16,816.80 × 10,066.40
  4. Step 4: Simplify right side
    11,232.80x = 169,284,635.52
  5. Step 5: Solve for x
    x = 169,284,635.52/11,232.80
  6. Step 6: Final answer
    x = 15,070.56

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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.