Home / 15,664.83-21,616.05-8,950.43

Finding the Fourth Proportional to 15,664.83, 21,616.05 and 8,950.43

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Solution

The fourth proportional to 15,664.83, 21,616.05 and 8,950.43 is: 12,350.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,664.83 : 21,616.05 = 8,950.43 : x
  2. Step 2: Convert to fraction form
    15,664.83/21,616.05 = 8,950.43/x
  3. Step 3: Cross multiply
    15,664.83x = 21,616.05 × 8,950.43
  4. Step 4: Simplify right side
    15,664.83x = 193,472,942.40
  5. Step 5: Solve for x
    x = 193,472,942.40/15,664.83
  6. Step 6: Final answer
    x = 12,350.78

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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.