Home / 11,947.90-17,916.99-5,372.32

Finding the Fourth Proportional to 11,947.90, 17,916.99 and 5,372.32

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Solution

The fourth proportional to 11,947.90, 17,916.99 and 5,372.32 is: 8,056.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.90 : 17,916.99 = 5,372.32 : x
  2. Step 2: Convert to fraction form
    11,947.90/17,916.99 = 5,372.32/x
  3. Step 3: Cross multiply
    11,947.90x = 17,916.99 × 5,372.32
  4. Step 4: Simplify right side
    11,947.90x = 96,255,803.72
  5. Step 5: Solve for x
    x = 96,255,803.72/11,947.90
  6. Step 6: Final answer
    x = 8,056.29

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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.