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Finding the Fourth Proportional to 11,998, 16,557.24 and 6,620.30

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Solution

The fourth proportional to 11,998, 16,557.24 and 6,620.30 is: 9,136.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,998 : 16,557.24 = 6,620.30 : x
  2. Step 2: Convert to fraction form
    11,998/16,557.24 = 6,620.30/x
  3. Step 3: Cross multiply
    11,998x = 16,557.24 × 6,620.30
  4. Step 4: Simplify right side
    11,998x = 109,613,895.97
  5. Step 5: Solve for x
    x = 109,613,895.97/11,998
  6. Step 6: Final answer
    x = 9,136.01

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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.