Home / 12,351.15-18,618.99-11,300.27

Finding the Fourth Proportional to 12,351.15, 18,618.99 and 11,300.27

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Solution

The fourth proportional to 12,351.15, 18,618.99 and 11,300.27 is: 17,034.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.15 : 18,618.99 = 11,300.27 : x
  2. Step 2: Convert to fraction form
    12,351.15/18,618.99 = 11,300.27/x
  3. Step 3: Cross multiply
    12,351.15x = 18,618.99 × 11,300.27
  4. Step 4: Simplify right side
    12,351.15x = 210,399,521.03
  5. Step 5: Solve for x
    x = 210,399,521.03/12,351.15
  6. Step 6: Final answer
    x = 17,034.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.