Home / 11,129.34-16,686.72-4,548.90

Finding the Fourth Proportional to 11,129.34, 16,686.72 and 4,548.90

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Solution

The fourth proportional to 11,129.34, 16,686.72 and 4,548.90 is: 6,820.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.34 : 16,686.72 = 4,548.90 : x
  2. Step 2: Convert to fraction form
    11,129.34/16,686.72 = 4,548.90/x
  3. Step 3: Cross multiply
    11,129.34x = 16,686.72 × 4,548.90
  4. Step 4: Simplify right side
    11,129.34x = 75,906,220.61
  5. Step 5: Solve for x
    x = 75,906,220.61/11,129.34
  6. Step 6: Final answer
    x = 6,820.37

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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.