Home / 7,127.32-9,835.62-3,983.48

Finding the Fourth Proportional to 7,127.32, 9,835.62 and 3,983.48

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Solution

The fourth proportional to 7,127.32, 9,835.62 and 3,983.48 is: 5,497.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.32 : 9,835.62 = 3,983.48 : x
  2. Step 2: Convert to fraction form
    7,127.32/9,835.62 = 3,983.48/x
  3. Step 3: Cross multiply
    7,127.32x = 9,835.62 × 3,983.48
  4. Step 4: Simplify right side
    7,127.32x = 39,179,995.56
  5. Step 5: Solve for x
    x = 39,179,995.56/7,127.32
  6. Step 6: Final answer
    x = 5,497.16

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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.