Home / 9,375.36-12,945.60-6,397.44

Finding the Fourth Proportional to 9,375.36, 12,945.60 and 6,397.44

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Solution

The fourth proportional to 9,375.36, 12,945.60 and 6,397.44 is: 8,833.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,375.36 : 12,945.60 = 6,397.44 : x
  2. Step 2: Convert to fraction form
    9,375.36/12,945.60 = 6,397.44/x
  3. Step 3: Cross multiply
    9,375.36x = 12,945.60 × 6,397.44
  4. Step 4: Simplify right side
    9,375.36x = 82,818,699.26
  5. Step 5: Solve for x
    x = 82,818,699.26/9,375.36
  6. Step 6: Final answer
    x = 8,833.66

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1.5x scale

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.