Home / 18,617.13-25,693.67-10,661.97

Finding the Fourth Proportional to 18,617.13, 25,693.67 and 10,661.97

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Solution

The fourth proportional to 18,617.13, 25,693.67 and 10,661.97 is: 14,714.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.13 : 25,693.67 = 10,661.97 : x
  2. Step 2: Convert to fraction form
    18,617.13/25,693.67 = 10,661.97/x
  3. Step 3: Cross multiply
    18,617.13x = 25,693.67 × 10,661.97
  4. Step 4: Simplify right side
    18,617.13x = 273,945,085.42
  5. Step 5: Solve for x
    x = 273,945,085.42/18,617.13
  6. Step 6: Final answer
    x = 14,714.68

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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.