Home / 14,506.28-21,755.43-5,145.05

Finding the Fourth Proportional to 14,506.28, 21,755.43 and 5,145.05

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Solution

The fourth proportional to 14,506.28, 21,755.43 and 5,145.05 is: 7,716.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,506.28 : 21,755.43 = 5,145.05 : x
  2. Step 2: Convert to fraction form
    14,506.28/21,755.43 = 5,145.05/x
  3. Step 3: Cross multiply
    14,506.28x = 21,755.43 × 5,145.05
  4. Step 4: Simplify right side
    14,506.28x = 111,932,775.12
  5. Step 5: Solve for x
    x = 111,932,775.12/14,506.28
  6. Step 6: Final answer
    x = 7,716.16

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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.