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Finding the Fourth Proportional to 10,667.88, 16,001.88 and 6,993.36

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Solution

The fourth proportional to 10,667.88, 16,001.88 and 6,993.36 is: 10,490.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,667.88 : 16,001.88 = 6,993.36 : x
  2. Step 2: Convert to fraction form
    10,667.88/16,001.88 = 6,993.36/x
  3. Step 3: Cross multiply
    10,667.88x = 16,001.88 × 6,993.36
  4. Step 4: Simplify right side
    10,667.88x = 111,906,907.52
  5. Step 5: Solve for x
    x = 111,906,907.52/10,667.88
  6. Step 6: Final answer
    x = 10,490.08

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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.