Home / 15,657.30-21,608.79-9,997.26

Finding the Fourth Proportional to 15,657.30, 21,608.79 and 9,997.26

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Solution

The fourth proportional to 15,657.30, 21,608.79 and 9,997.26 is: 13,797.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.30 : 21,608.79 = 9,997.26 : x
  2. Step 2: Convert to fraction form
    15,657.30/21,608.79 = 9,997.26/x
  3. Step 3: Cross multiply
    15,657.30x = 21,608.79 × 9,997.26
  4. Step 4: Simplify right side
    15,657.30x = 216,028,691.92
  5. Step 5: Solve for x
    x = 216,028,691.92/15,657.30
  6. Step 6: Final answer
    x = 13,797.31

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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.