Home / 9,991.23-14,985.14-3,326.97

Finding the Fourth Proportional to 9,991.23, 14,985.14 and 3,326.97

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Solution

The fourth proportional to 9,991.23, 14,985.14 and 3,326.97 is: 4,989.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991.23 : 14,985.14 = 3,326.97 : x
  2. Step 2: Convert to fraction form
    9,991.23/14,985.14 = 3,326.97/x
  3. Step 3: Cross multiply
    9,991.23x = 14,985.14 × 3,326.97
  4. Step 4: Simplify right side
    9,991.23x = 49,855,181.98
  5. Step 5: Solve for x
    x = 49,855,181.98/9,991.23
  6. Step 6: Final answer
    x = 4,989.89

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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.