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Finding the Fourth Proportional to 11,387.88, 17,088.30 and 9,093.96

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Solution

The fourth proportional to 11,387.88, 17,088.30 and 9,093.96 is: 13,646.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.88 : 17,088.30 = 9,093.96 : x
  2. Step 2: Convert to fraction form
    11,387.88/17,088.30 = 9,093.96/x
  3. Step 3: Cross multiply
    11,387.88x = 17,088.30 × 9,093.96
  4. Step 4: Simplify right side
    11,387.88x = 155,400,316.67
  5. Step 5: Solve for x
    x = 155,400,316.67/11,387.88
  6. Step 6: Final answer
    x = 13,646.11

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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.