Home / 10,784.61-16,179.75-3,389.31

Finding the Fourth Proportional to 10,784.61, 16,179.75 and 3,389.31

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Solution

The fourth proportional to 10,784.61, 16,179.75 and 3,389.31 is: 5,084.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,784.61 : 16,179.75 = 3,389.31 : x
  2. Step 2: Convert to fraction form
    10,784.61/16,179.75 = 3,389.31/x
  3. Step 3: Cross multiply
    10,784.61x = 16,179.75 × 3,389.31
  4. Step 4: Simplify right side
    10,784.61x = 54,838,188.47
  5. Step 5: Solve for x
    x = 54,838,188.47/10,784.61
  6. Step 6: Final answer
    x = 5,084.86

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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.