Home / 10,865.89-16,298.66-3,470.30

Finding the Fourth Proportional to 10,865.89, 16,298.66 and 3,470.30

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Solution

The fourth proportional to 10,865.89, 16,298.66 and 3,470.30 is: 5,205.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.89 : 16,298.66 = 3,470.30 : x
  2. Step 2: Convert to fraction form
    10,865.89/16,298.66 = 3,470.30/x
  3. Step 3: Cross multiply
    10,865.89x = 16,298.66 × 3,470.30
  4. Step 4: Simplify right side
    10,865.89x = 56,561,239.80
  5. Step 5: Solve for x
    x = 56,561,239.80/10,865.89
  6. Step 6: Final answer
    x = 5,205.39

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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.