Home / 7,127.12-9,835.62-3,983.52

Finding the Fourth Proportional to 7,127.12, 9,835.62 and 3,983.52

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Solution

The fourth proportional to 7,127.12, 9,835.62 and 3,983.52 is: 5,497.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.12 : 9,835.62 = 3,983.52 : x
  2. Step 2: Convert to fraction form
    7,127.12/9,835.62 = 3,983.52/x
  3. Step 3: Cross multiply
    7,127.12x = 9,835.62 × 3,983.52
  4. Step 4: Simplify right side
    7,127.12x = 39,180,388.98
  5. Step 5: Solve for x
    x = 39,180,388.98/7,127.12
  6. Step 6: Final answer
    x = 5,497.37

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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.