Home / 6,143.80-9,218.74-4,192.11

Finding the Fourth Proportional to 6,143.80, 9,218.74 and 4,192.11

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Solution

The fourth proportional to 6,143.80, 9,218.74 and 4,192.11 is: 6,290.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.80 : 9,218.74 = 4,192.11 : x
  2. Step 2: Convert to fraction form
    6,143.80/9,218.74 = 4,192.11/x
  3. Step 3: Cross multiply
    6,143.80x = 9,218.74 × 4,192.11
  4. Step 4: Simplify right side
    6,143.80x = 38,645,972.14
  5. Step 5: Solve for x
    x = 38,645,972.14/6,143.80
  6. Step 6: Final answer
    x = 6,290.24

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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.