Home / 11,351.07-17,042.40-5,808.78

Finding the Fourth Proportional to 11,351.07, 17,042.40 and 5,808.78

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Solution

The fourth proportional to 11,351.07, 17,042.40 and 5,808.78 is: 8,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.07 : 17,042.40 = 5,808.78 : x
  2. Step 2: Convert to fraction form
    11,351.07/17,042.40 = 5,808.78/x
  3. Step 3: Cross multiply
    11,351.07x = 17,042.40 × 5,808.78
  4. Step 4: Simplify right side
    11,351.07x = 98,995,552.27
  5. Step 5: Solve for x
    x = 98,995,552.27/11,351.07
  6. Step 6: Final answer
    x = 8,721.25

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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.