Home / 15,816.94-21,829.57-9,102.44

Finding the Fourth Proportional to 15,816.94, 21,829.57 and 9,102.44

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Solution

The fourth proportional to 15,816.94, 21,829.57 and 9,102.44 is: 12,562.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,816.94 : 21,829.57 = 9,102.44 : x
  2. Step 2: Convert to fraction form
    15,816.94/21,829.57 = 9,102.44/x
  3. Step 3: Cross multiply
    15,816.94x = 21,829.57 × 9,102.44
  4. Step 4: Simplify right side
    15,816.94x = 198,702,382.97
  5. Step 5: Solve for x
    x = 198,702,382.97/15,816.94
  6. Step 6: Final answer
    x = 12,562.63

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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.