Home / 12,128.24-18,192.34-3,363.16

Finding the Fourth Proportional to 12,128.24, 18,192.34 and 3,363.16

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Solution

The fourth proportional to 12,128.24, 18,192.34 and 3,363.16 is: 5,044.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128.24 : 18,192.34 = 3,363.16 : x
  2. Step 2: Convert to fraction form
    12,128.24/18,192.34 = 3,363.16/x
  3. Step 3: Cross multiply
    12,128.24x = 18,192.34 × 3,363.16
  4. Step 4: Simplify right side
    12,128.24x = 61,183,750.19
  5. Step 5: Solve for x
    x = 61,183,750.19/12,128.24
  6. Step 6: Final answer
    x = 5,044.73

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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.