Home / 12,321.72-17,025.66-10,747.08

Finding the Fourth Proportional to 12,321.72, 17,025.66 and 10,747.08

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Solution

The fourth proportional to 12,321.72, 17,025.66 and 10,747.08 is: 14,849.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.72 : 17,025.66 = 10,747.08 : x
  2. Step 2: Convert to fraction form
    12,321.72/17,025.66 = 10,747.08/x
  3. Step 3: Cross multiply
    12,321.72x = 17,025.66 × 10,747.08
  4. Step 4: Simplify right side
    12,321.72x = 182,976,130.07
  5. Step 5: Solve for x
    x = 182,976,130.07/12,321.72
  6. Step 6: Final answer
    x = 14,849.89

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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.