Home / 7,891.68-11,837.50-4,431.36

Finding the Fourth Proportional to 7,891.68, 11,837.50 and 4,431.36

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Solution

The fourth proportional to 7,891.68, 11,837.50 and 4,431.36 is: 6,647.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.68 : 11,837.50 = 4,431.36 : x
  2. Step 2: Convert to fraction form
    7,891.68/11,837.50 = 4,431.36/x
  3. Step 3: Cross multiply
    7,891.68x = 11,837.50 × 4,431.36
  4. Step 4: Simplify right side
    7,891.68x = 52,456,224.00
  5. Step 5: Solve for x
    x = 52,456,224.00/7,891.68
  6. Step 6: Final answer
    x = 6,647.03

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1.5x scale

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.