Home / 11,681.28-17,517.61-9,187.34

Finding the Fourth Proportional to 11,681.28, 17,517.61 and 9,187.34

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Solution

The fourth proportional to 11,681.28, 17,517.61 and 9,187.34 is: 13,777.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.28 : 17,517.61 = 9,187.34 : x
  2. Step 2: Convert to fraction form
    11,681.28/17,517.61 = 9,187.34/x
  3. Step 3: Cross multiply
    11,681.28x = 17,517.61 × 9,187.34
  4. Step 4: Simplify right side
    11,681.28x = 160,940,239.06
  5. Step 5: Solve for x
    x = 160,940,239.06/11,681.28
  6. Step 6: Final answer
    x = 13,777.62

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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.