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Finding the Fourth Proportional to 11,134.40, 16,701.60 and 10,405.40

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Solution

The fourth proportional to 11,134.40, 16,701.60 and 10,405.40 is: 15,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,134.40 : 16,701.60 = 10,405.40 : x
  2. Step 2: Convert to fraction form
    11,134.40/16,701.60 = 10,405.40/x
  3. Step 3: Cross multiply
    11,134.40x = 16,701.60 × 10,405.40
  4. Step 4: Simplify right side
    11,134.40x = 173,786,828.64
  5. Step 5: Solve for x
    x = 173,786,828.64/11,134.40
  6. Step 6: Final answer
    x = 15,608.10

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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.