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Finding the Fourth Proportional to 11,673.99, 16,110.59 and 6,639.08

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Solution

The fourth proportional to 11,673.99, 16,110.59 and 6,639.08 is: 9,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,673.99 : 16,110.59 = 6,639.08 : x
  2. Step 2: Convert to fraction form
    11,673.99/16,110.59 = 6,639.08/x
  3. Step 3: Cross multiply
    11,673.99x = 16,110.59 × 6,639.08
  4. Step 4: Simplify right side
    11,673.99x = 106,959,382.11
  5. Step 5: Solve for x
    x = 106,959,382.11/11,673.99
  6. Step 6: Final answer
    x = 9,162.20

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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.