Home / 15,456.62-21,329.40-8,743.22

Finding the Fourth Proportional to 15,456.62, 21,329.40 and 8,743.22

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Solution

The fourth proportional to 15,456.62, 21,329.40 and 8,743.22 is: 12,065.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,456.62 : 21,329.40 = 8,743.22 : x
  2. Step 2: Convert to fraction form
    15,456.62/21,329.40 = 8,743.22/x
  3. Step 3: Cross multiply
    15,456.62x = 21,329.40 × 8,743.22
  4. Step 4: Simplify right side
    15,456.62x = 186,487,558.21
  5. Step 5: Solve for x
    x = 186,487,558.21/15,456.62
  6. Step 6: Final answer
    x = 12,065.22

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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.