Home / 12,749.66-17,603.00-7,976.79

Finding the Fourth Proportional to 12,749.66, 17,603.00 and 7,976.79

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Solution

The fourth proportional to 12,749.66, 17,603.00 and 7,976.79 is: 11,013.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749.66 : 17,603.00 = 7,976.79 : x
  2. Step 2: Convert to fraction form
    12,749.66/17,603.00 = 7,976.79/x
  3. Step 3: Cross multiply
    12,749.66x = 17,603.00 × 7,976.79
  4. Step 4: Simplify right side
    12,749.66x = 140,415,394.49
  5. Step 5: Solve for x
    x = 140,415,394.49/12,749.66
  6. Step 6: Final answer
    x = 11,013.27

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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.