Home / 11,747.98-16,211.62-6,643.36

Finding the Fourth Proportional to 11,747.98, 16,211.62 and 6,643.36

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Solution

The fourth proportional to 11,747.98, 16,211.62 and 6,643.36 is: 9,167.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.98 : 16,211.62 = 6,643.36 : x
  2. Step 2: Convert to fraction form
    11,747.98/16,211.62 = 6,643.36/x
  3. Step 3: Cross multiply
    11,747.98x = 16,211.62 × 6,643.36
  4. Step 4: Simplify right side
    11,747.98x = 107,699,627.84
  5. Step 5: Solve for x
    x = 107,699,627.84/11,747.98
  6. Step 6: Final answer
    x = 9,167.50

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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.