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Finding the Fourth Proportional to 11,945.03, 16,484.71 and 6,639.94

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Solution

The fourth proportional to 11,945.03, 16,484.71 and 6,639.94 is: 9,163.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.03 : 16,484.71 = 6,639.94 : x
  2. Step 2: Convert to fraction form
    11,945.03/16,484.71 = 6,639.94/x
  3. Step 3: Cross multiply
    11,945.03x = 16,484.71 × 6,639.94
  4. Step 4: Simplify right side
    11,945.03x = 109,457,427.51
  5. Step 5: Solve for x
    x = 109,457,427.51/11,945.03
  6. Step 6: Final answer
    x = 9,163.43

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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.