Home / 11,485.75-15,850.35-6,517.75

Finding the Fourth Proportional to 11,485.75, 15,850.35 and 6,517.75

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Solution

The fourth proportional to 11,485.75, 15,850.35 and 6,517.75 is: 8,994.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,485.75 : 15,850.35 = 6,517.75 : x
  2. Step 2: Convert to fraction form
    11,485.75/15,850.35 = 6,517.75/x
  3. Step 3: Cross multiply
    11,485.75x = 15,850.35 × 6,517.75
  4. Step 4: Simplify right side
    11,485.75x = 103,308,618.71
  5. Step 5: Solve for x
    x = 103,308,618.71/11,485.75
  6. Step 6: Final answer
    x = 8,994.50

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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.