Home / 9,905.25-14,860.31-2,979.75

Finding the Fourth Proportional to 9,905.25, 14,860.31 and 2,979.75

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Solution

The fourth proportional to 9,905.25, 14,860.31 and 2,979.75 is: 4,470.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.25 : 14,860.31 = 2,979.75 : x
  2. Step 2: Convert to fraction form
    9,905.25/14,860.31 = 2,979.75/x
  3. Step 3: Cross multiply
    9,905.25x = 14,860.31 × 2,979.75
  4. Step 4: Simplify right side
    9,905.25x = 44,280,008.72
  5. Step 5: Solve for x
    x = 44,280,008.72/9,905.25
  6. Step 6: Final answer
    x = 4,470.36

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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.