Home / 15,579.69-21,499.80-9,608.97

Finding the Fourth Proportional to 15,579.69, 21,499.80 and 9,608.97

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Solution

The fourth proportional to 15,579.69, 21,499.80 and 9,608.97 is: 13,260.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579.69 : 21,499.80 = 9,608.97 : x
  2. Step 2: Convert to fraction form
    15,579.69/21,499.80 = 9,608.97/x
  3. Step 3: Cross multiply
    15,579.69x = 21,499.80 × 9,608.97
  4. Step 4: Simplify right side
    15,579.69x = 206,590,933.21
  5. Step 5: Solve for x
    x = 206,590,933.21/15,579.69
  6. Step 6: Final answer
    x = 13,260.27

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1.5x scale

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.