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Finding the Fourth Proportional to 11,387.76, 17,088.11 and 9,093.84

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Solution

The fourth proportional to 11,387.76, 17,088.11 and 9,093.84 is: 13,645.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.76 : 17,088.11 = 9,093.84 : x
  2. Step 2: Convert to fraction form
    11,387.76/17,088.11 = 9,093.84/x
  3. Step 3: Cross multiply
    11,387.76x = 17,088.11 × 9,093.84
  4. Step 4: Simplify right side
    11,387.76x = 155,396,538.24
  5. Step 5: Solve for x
    x = 155,396,538.24/11,387.76
  6. Step 6: Final answer
    x = 13,645.93

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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.