Home / 15,664.73-21,615.32-8,950.79

Finding the Fourth Proportional to 15,664.73, 21,615.32 and 8,950.79

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Solution

The fourth proportional to 15,664.73, 21,615.32 and 8,950.79 is: 12,350.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,664.73 : 21,615.32 = 8,950.79 : x
  2. Step 2: Convert to fraction form
    15,664.73/21,615.32 = 8,950.79/x
  3. Step 3: Cross multiply
    15,664.73x = 21,615.32 × 8,950.79
  4. Step 4: Simplify right side
    15,664.73x = 193,474,185.46
  5. Step 5: Solve for x
    x = 193,474,185.46/15,664.73
  6. Step 6: Final answer
    x = 12,350.95

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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.