Home / 11,342.50-15,644.54-7,563.78

Finding the Fourth Proportional to 11,342.50, 15,644.54 and 7,563.78

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Solution

The fourth proportional to 11,342.50, 15,644.54 and 7,563.78 is: 10,432.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,342.50 : 15,644.54 = 7,563.78 : x
  2. Step 2: Convert to fraction form
    11,342.50/15,644.54 = 7,563.78/x
  3. Step 3: Cross multiply
    11,342.50x = 15,644.54 × 7,563.78
  4. Step 4: Simplify right side
    11,342.50x = 118,331,877.67
  5. Step 5: Solve for x
    x = 118,331,877.67/11,342.50
  6. Step 6: Final answer
    x = 10,432.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.