Home / 11,816.91-17,725.05-2,931.93

Finding the Fourth Proportional to 11,816.91, 17,725.05 and 2,931.93

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Solution

The fourth proportional to 11,816.91, 17,725.05 and 2,931.93 is: 4,397.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.91 : 17,725.05 = 2,931.93 : x
  2. Step 2: Convert to fraction form
    11,816.91/17,725.05 = 2,931.93/x
  3. Step 3: Cross multiply
    11,816.91x = 17,725.05 × 2,931.93
  4. Step 4: Simplify right side
    11,816.91x = 51,968,605.85
  5. Step 5: Solve for x
    x = 51,968,605.85/11,816.91
  6. Step 6: Final answer
    x = 4,397.82

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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.