Home / 9,921.09-14,886.49-3,997.71

Finding the Fourth Proportional to 9,921.09, 14,886.49 and 3,997.71

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Solution

The fourth proportional to 9,921.09, 14,886.49 and 3,997.71 is: 5,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.09 : 14,886.49 = 3,997.71 : x
  2. Step 2: Convert to fraction form
    9,921.09/14,886.49 = 3,997.71/x
  3. Step 3: Cross multiply
    9,921.09x = 14,886.49 × 3,997.71
  4. Step 4: Simplify right side
    9,921.09x = 59,511,897.16
  5. Step 5: Solve for x
    x = 59,511,897.16/9,921.09
  6. Step 6: Final answer
    x = 5,998.53

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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.