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Finding the Fourth Proportional to 11,318.56, 16,955.78 and 7,411.12

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Solution

The fourth proportional to 11,318.56, 16,955.78 and 7,411.12 is: 11,102.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.56 : 16,955.78 = 7,411.12 : x
  2. Step 2: Convert to fraction form
    11,318.56/16,955.78 = 7,411.12/x
  3. Step 3: Cross multiply
    11,318.56x = 16,955.78 × 7,411.12
  4. Step 4: Simplify right side
    11,318.56x = 125,661,320.27
  5. Step 5: Solve for x
    x = 125,661,320.27/11,318.56
  6. Step 6: Final answer
    x = 11,102.24

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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.