Home / 11,517.36-17,191.92-9,884.40

Finding the Fourth Proportional to 11,517.36, 17,191.92 and 9,884.40

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Solution

The fourth proportional to 11,517.36, 17,191.92 and 9,884.40 is: 14,754.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,517.36 : 17,191.92 = 9,884.40 : x
  2. Step 2: Convert to fraction form
    11,517.36/17,191.92 = 9,884.40/x
  3. Step 3: Cross multiply
    11,517.36x = 17,191.92 × 9,884.40
  4. Step 4: Simplify right side
    11,517.36x = 169,931,814.05
  5. Step 5: Solve for x
    x = 169,931,814.05/11,517.36
  6. Step 6: Final answer
    x = 14,754.41

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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.