Home / 12,142.93-18,200.72-6,203.20

Finding the Fourth Proportional to 12,142.93, 18,200.72 and 6,203.20

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Solution

The fourth proportional to 12,142.93, 18,200.72 and 6,203.20 is: 9,297.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142.93 : 18,200.72 = 6,203.20 : x
  2. Step 2: Convert to fraction form
    12,142.93/18,200.72 = 6,203.20/x
  3. Step 3: Cross multiply
    12,142.93x = 18,200.72 × 6,203.20
  4. Step 4: Simplify right side
    12,142.93x = 112,902,706.30
  5. Step 5: Solve for x
    x = 112,902,706.30/12,142.93
  6. Step 6: Final answer
    x = 9,297.81

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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.