Home / 10,865.78-16,299.54-3,471.29

Finding the Fourth Proportional to 10,865.78, 16,299.54 and 3,471.29

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Solution

The fourth proportional to 10,865.78, 16,299.54 and 3,471.29 is: 5,207.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.78 : 16,299.54 = 3,471.29 : x
  2. Step 2: Convert to fraction form
    10,865.78/16,299.54 = 3,471.29/x
  3. Step 3: Cross multiply
    10,865.78x = 16,299.54 × 3,471.29
  4. Step 4: Simplify right side
    10,865.78x = 56,580,430.21
  5. Step 5: Solve for x
    x = 56,580,430.21/10,865.78
  6. Step 6: Final answer
    x = 5,207.21

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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.