Home / 15,738.35-21,718.88-8,664.77

Finding the Fourth Proportional to 15,738.35, 21,718.88 and 8,664.77

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Solution

The fourth proportional to 15,738.35, 21,718.88 and 8,664.77 is: 11,957.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,738.35 : 21,718.88 = 8,664.77 : x
  2. Step 2: Convert to fraction form
    15,738.35/21,718.88 = 8,664.77/x
  3. Step 3: Cross multiply
    15,738.35x = 21,718.88 × 8,664.77
  4. Step 4: Simplify right side
    15,738.35x = 188,189,192.06
  5. Step 5: Solve for x
    x = 188,189,192.06/15,738.35
  6. Step 6: Final answer
    x = 11,957.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.