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Finding the Fourth Proportional to 11,164.95, 16,751.28 and 7,431.70

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Solution

The fourth proportional to 11,164.95, 16,751.28 and 7,431.70 is: 11,150.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.95 : 16,751.28 = 7,431.70 : x
  2. Step 2: Convert to fraction form
    11,164.95/16,751.28 = 7,431.70/x
  3. Step 3: Cross multiply
    11,164.95x = 16,751.28 × 7,431.70
  4. Step 4: Simplify right side
    11,164.95x = 124,490,487.58
  5. Step 5: Solve for x
    x = 124,490,487.58/11,164.95
  6. Step 6: Final answer
    x = 11,150.12

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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.