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Finding the Fourth Proportional to 16,899.56, 25,329.25 and 7,881.56

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Solution

The fourth proportional to 16,899.56, 25,329.25 and 7,881.56 is: 11,812.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,899.56 : 25,329.25 = 7,881.56 : x
  2. Step 2: Convert to fraction form
    16,899.56/25,329.25 = 7,881.56/x
  3. Step 3: Cross multiply
    16,899.56x = 25,329.25 × 7,881.56
  4. Step 4: Simplify right side
    16,899.56x = 199,634,003.63
  5. Step 5: Solve for x
    x = 199,634,003.63/16,899.56
  6. Step 6: Final answer
    x = 11,812.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.