Home / 12,512.33-18,769.84-4,192.01

Finding the Fourth Proportional to 12,512.33, 18,769.84 and 4,192.01

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Solution

The fourth proportional to 12,512.33, 18,769.84 and 4,192.01 is: 6,288.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.33 : 18,769.84 = 4,192.01 : x
  2. Step 2: Convert to fraction form
    12,512.33/18,769.84 = 4,192.01/x
  3. Step 3: Cross multiply
    12,512.33x = 18,769.84 × 4,192.01
  4. Step 4: Simplify right side
    12,512.33x = 78,683,252.65
  5. Step 5: Solve for x
    x = 78,683,252.65/12,512.33
  6. Step 6: Final answer
    x = 6,288.46

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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.