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Finding the Fourth Proportional to 15,753.33, 21,739.41 and 9,039.10

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Solution

The fourth proportional to 15,753.33, 21,739.41 and 9,039.10 is: 12,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,753.33 : 21,739.41 = 9,039.10 : x
  2. Step 2: Convert to fraction form
    15,753.33/21,739.41 = 9,039.10/x
  3. Step 3: Cross multiply
    15,753.33x = 21,739.41 × 9,039.10
  4. Step 4: Simplify right side
    15,753.33x = 196,504,700.93
  5. Step 5: Solve for x
    x = 196,504,700.93/15,753.33
  6. Step 6: Final answer
    x = 12,473.85

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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.