Home / 9,118.44-13,669.02-3,921

Finding the Fourth Proportional to 9,118.44, 13,669.02 and 3,921

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Solution

The fourth proportional to 9,118.44, 13,669.02 and 3,921 is: 5,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.44 : 13,669.02 = 3,921 : x
  2. Step 2: Convert to fraction form
    9,118.44/13,669.02 = 3,921/x
  3. Step 3: Cross multiply
    9,118.44x = 13,669.02 × 3,921
  4. Step 4: Simplify right side
    9,118.44x = 53,596,227.42
  5. Step 5: Solve for x
    x = 53,596,227.42/9,118.44
  6. Step 6: Final answer
    x = 5,877.78

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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.