Home / 12,640.03-17,443.07-6,974.63

Finding the Fourth Proportional to 12,640.03, 17,443.07 and 6,974.63

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Solution

The fourth proportional to 12,640.03, 17,443.07 and 6,974.63 is: 9,624.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640.03 : 17,443.07 = 6,974.63 : x
  2. Step 2: Convert to fraction form
    12,640.03/17,443.07 = 6,974.63/x
  3. Step 3: Cross multiply
    12,640.03x = 17,443.07 × 6,974.63
  4. Step 4: Simplify right side
    12,640.03x = 121,658,924.44
  5. Step 5: Solve for x
    x = 121,658,924.44/12,640.03
  6. Step 6: Final answer
    x = 9,624.90

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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.