Home / 11,916.72-17,875.08-4,125.54

Finding the Fourth Proportional to 11,916.72, 17,875.08 and 4,125.54

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Solution

The fourth proportional to 11,916.72, 17,875.08 and 4,125.54 is: 6,188.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.72 : 17,875.08 = 4,125.54 : x
  2. Step 2: Convert to fraction form
    11,916.72/17,875.08 = 4,125.54/x
  3. Step 3: Cross multiply
    11,916.72x = 17,875.08 × 4,125.54
  4. Step 4: Simplify right side
    11,916.72x = 73,744,357.54
  5. Step 5: Solve for x
    x = 73,744,357.54/11,916.72
  6. Step 6: Final answer
    x = 6,188.31

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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.