Home / 9,965.75-13,753.10-6,191

Finding the Fourth Proportional to 9,965.75, 13,753.10 and 6,191

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Solution

The fourth proportional to 9,965.75, 13,753.10 and 6,191 is: 8,543.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,965.75 : 13,753.10 = 6,191 : x
  2. Step 2: Convert to fraction form
    9,965.75/13,753.10 = 6,191/x
  3. Step 3: Cross multiply
    9,965.75x = 13,753.10 × 6,191
  4. Step 4: Simplify right side
    9,965.75x = 85,145,442.10
  5. Step 5: Solve for x
    x = 85,145,442.10/9,965.75
  6. Step 6: Final answer
    x = 8,543.81

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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.