Home / 12,749.49-17,589.38-9,400.27

Finding the Fourth Proportional to 12,749.49, 17,589.38 and 9,400.27

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Solution

The fourth proportional to 12,749.49, 17,589.38 and 9,400.27 is: 12,968.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749.49 : 17,589.38 = 9,400.27 : x
  2. Step 2: Convert to fraction form
    12,749.49/17,589.38 = 9,400.27/x
  3. Step 3: Cross multiply
    12,749.49x = 17,589.38 × 9,400.27
  4. Step 4: Simplify right side
    12,749.49x = 165,344,921.13
  5. Step 5: Solve for x
    x = 165,344,921.13/12,749.49
  6. Step 6: Final answer
    x = 12,968.75

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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.