Home / 9,211.88-12,716.28-6,231.75

Finding the Fourth Proportional to 9,211.88, 12,716.28 and 6,231.75

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Solution

The fourth proportional to 9,211.88, 12,716.28 and 6,231.75 is: 8,602.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.88 : 12,716.28 = 6,231.75 : x
  2. Step 2: Convert to fraction form
    9,211.88/12,716.28 = 6,231.75/x
  3. Step 3: Cross multiply
    9,211.88x = 12,716.28 × 6,231.75
  4. Step 4: Simplify right side
    9,211.88x = 79,244,677.89
  5. Step 5: Solve for x
    x = 79,244,677.89/9,211.88
  6. Step 6: Final answer
    x = 8,602.45

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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.