Home / 11,721.65-17,580.58-4,329.59

Finding the Fourth Proportional to 11,721.65, 17,580.58 and 4,329.59

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Solution

The fourth proportional to 11,721.65, 17,580.58 and 4,329.59 is: 6,493.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.65 : 17,580.58 = 4,329.59 : x
  2. Step 2: Convert to fraction form
    11,721.65/17,580.58 = 4,329.59/x
  3. Step 3: Cross multiply
    11,721.65x = 17,580.58 × 4,329.59
  4. Step 4: Simplify right side
    11,721.65x = 76,116,703.36
  5. Step 5: Solve for x
    x = 76,116,703.36/11,721.65
  6. Step 6: Final answer
    x = 6,493.69

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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.