Home / 11,360.66-15,678.14-6,881.86

Finding the Fourth Proportional to 11,360.66, 15,678.14 and 6,881.86

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Solution

The fourth proportional to 11,360.66, 15,678.14 and 6,881.86 is: 9,497.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,360.66 : 15,678.14 = 6,881.86 : x
  2. Step 2: Convert to fraction form
    11,360.66/15,678.14 = 6,881.86/x
  3. Step 3: Cross multiply
    11,360.66x = 15,678.14 × 6,881.86
  4. Step 4: Simplify right side
    11,360.66x = 107,894,764.54
  5. Step 5: Solve for x
    x = 107,894,764.54/11,360.66
  6. Step 6: Final answer
    x = 9,497.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.