Home / 18,431.99-25,428.14-11,714.02

Finding the Fourth Proportional to 18,431.99, 25,428.14 and 11,714.02

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Solution

The fourth proportional to 18,431.99, 25,428.14 and 11,714.02 is: 16,160.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.99 : 25,428.14 = 11,714.02 : x
  2. Step 2: Convert to fraction form
    18,431.99/25,428.14 = 11,714.02/x
  3. Step 3: Cross multiply
    18,431.99x = 25,428.14 × 11,714.02
  4. Step 4: Simplify right side
    18,431.99x = 297,865,706.24
  5. Step 5: Solve for x
    x = 297,865,706.24/18,431.99
  6. Step 6: Final answer
    x = 16,160.26

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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.