Home / 15,891.75-23,847.35-6,657.75

Finding the Fourth Proportional to 15,891.75, 23,847.35 and 6,657.75

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Solution

The fourth proportional to 15,891.75, 23,847.35 and 6,657.75 is: 9,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,891.75 : 23,847.35 = 6,657.75 : x
  2. Step 2: Convert to fraction form
    15,891.75/23,847.35 = 6,657.75/x
  3. Step 3: Cross multiply
    15,891.75x = 23,847.35 × 6,657.75
  4. Step 4: Simplify right side
    15,891.75x = 158,769,661.17
  5. Step 5: Solve for x
    x = 158,769,661.17/15,891.75
  6. Step 6: Final answer
    x = 9,990.70

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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.