Home / 18,939.04-26,183.12-14,215.12

Finding the Fourth Proportional to 18,939.04, 26,183.12 and 14,215.12

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Solution

The fourth proportional to 18,939.04, 26,183.12 and 14,215.12 is: 19,652.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.04 : 26,183.12 = 14,215.12 : x
  2. Step 2: Convert to fraction form
    18,939.04/26,183.12 = 14,215.12/x
  3. Step 3: Cross multiply
    18,939.04x = 26,183.12 × 14,215.12
  4. Step 4: Simplify right side
    18,939.04x = 372,196,192.77
  5. Step 5: Solve for x
    x = 372,196,192.77/18,939.04
  6. Step 6: Final answer
    x = 19,652.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.