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Finding the Fourth Proportional to 11,216.53, 16,808.93 and 6,221.11

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Solution

The fourth proportional to 11,216.53, 16,808.93 and 6,221.11 is: 9,322.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.53 : 16,808.93 = 6,221.11 : x
  2. Step 2: Convert to fraction form
    11,216.53/16,808.93 = 6,221.11/x
  3. Step 3: Cross multiply
    11,216.53x = 16,808.93 × 6,221.11
  4. Step 4: Simplify right side
    11,216.53x = 104,570,202.51
  5. Step 5: Solve for x
    x = 104,570,202.51/11,216.53
  6. Step 6: Final answer
    x = 9,322.87

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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.