Home / 12,772.74-17,626.61-7,107.72

Finding the Fourth Proportional to 12,772.74, 17,626.61 and 7,107.72

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Solution

The fourth proportional to 12,772.74, 17,626.61 and 7,107.72 is: 9,808.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.74 : 17,626.61 = 7,107.72 : x
  2. Step 2: Convert to fraction form
    12,772.74/17,626.61 = 7,107.72/x
  3. Step 3: Cross multiply
    12,772.74x = 17,626.61 × 7,107.72
  4. Step 4: Simplify right side
    12,772.74x = 125,285,108.82
  5. Step 5: Solve for x
    x = 125,285,108.82/12,772.74
  6. Step 6: Final answer
    x = 9,808.79

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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.