Home / 7,127.68-9,837.60-3,983.68

Finding the Fourth Proportional to 7,127.68, 9,837.60 and 3,983.68

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Solution

The fourth proportional to 7,127.68, 9,837.60 and 3,983.68 is: 5,498.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.68 : 9,837.60 = 3,983.68 : x
  2. Step 2: Convert to fraction form
    7,127.68/9,837.60 = 3,983.68/x
  3. Step 3: Cross multiply
    7,127.68x = 9,837.60 × 3,983.68
  4. Step 4: Simplify right side
    7,127.68x = 39,189,850.37
  5. Step 5: Solve for x
    x = 39,189,850.37/7,127.68
  6. Step 6: Final answer
    x = 5,498.26

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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.