Home / 15,579.68-21,499.80-9,608.96

Finding the Fourth Proportional to 15,579.68, 21,499.80 and 9,608.96

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Solution

The fourth proportional to 15,579.68, 21,499.80 and 9,608.96 is: 13,260.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579.68 : 21,499.80 = 9,608.96 : x
  2. Step 2: Convert to fraction form
    15,579.68/21,499.80 = 9,608.96/x
  3. Step 3: Cross multiply
    15,579.68x = 21,499.80 × 9,608.96
  4. Step 4: Simplify right side
    15,579.68x = 206,590,610.71
  5. Step 5: Solve for x
    x = 206,590,610.71/15,579.68
  6. Step 6: Final answer
    x = 13,260.26

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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.