Home / 11,386.17-17,081.78-3,489.78

Finding the Fourth Proportional to 11,386.17, 17,081.78 and 3,489.78

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Solution

The fourth proportional to 11,386.17, 17,081.78 and 3,489.78 is: 5,235.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,386.17 : 17,081.78 = 3,489.78 : x
  2. Step 2: Convert to fraction form
    11,386.17/17,081.78 = 3,489.78/x
  3. Step 3: Cross multiply
    11,386.17x = 17,081.78 × 3,489.78
  4. Step 4: Simplify right side
    11,386.17x = 59,611,654.21
  5. Step 5: Solve for x
    x = 59,611,654.21/11,386.17
  6. Step 6: Final answer
    x = 5,235.44

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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.