Home / 9,142.35-13,702.50-4,205.22

Finding the Fourth Proportional to 9,142.35, 13,702.50 and 4,205.22

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Solution

The fourth proportional to 9,142.35, 13,702.50 and 4,205.22 is: 6,302.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,142.35 : 13,702.50 = 4,205.22 : x
  2. Step 2: Convert to fraction form
    9,142.35/13,702.50 = 4,205.22/x
  3. Step 3: Cross multiply
    9,142.35x = 13,702.50 × 4,205.22
  4. Step 4: Simplify right side
    9,142.35x = 57,622,027.05
  5. Step 5: Solve for x
    x = 57,622,027.05/9,142.35
  6. Step 6: Final answer
    x = 6,302.76

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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.