Home / 11,707.41-17,561.13-4,781.91

Finding the Fourth Proportional to 11,707.41, 17,561.13 and 4,781.91

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Solution

The fourth proportional to 11,707.41, 17,561.13 and 4,781.91 is: 7,172.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,707.41 : 17,561.13 = 4,781.91 : x
  2. Step 2: Convert to fraction form
    11,707.41/17,561.13 = 4,781.91/x
  3. Step 3: Cross multiply
    11,707.41x = 17,561.13 × 4,781.91
  4. Step 4: Simplify right side
    11,707.41x = 83,975,659.37
  5. Step 5: Solve for x
    x = 83,975,659.37/11,707.41
  6. Step 6: Final answer
    x = 7,172.87

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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.