Home / 12,601.22-17,389.70-7,012.22

Finding the Fourth Proportional to 12,601.22, 17,389.70 and 7,012.22

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Solution

The fourth proportional to 12,601.22, 17,389.70 and 7,012.22 is: 9,676.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,601.22 : 17,389.70 = 7,012.22 : x
  2. Step 2: Convert to fraction form
    12,601.22/17,389.70 = 7,012.22/x
  3. Step 3: Cross multiply
    12,601.22x = 17,389.70 × 7,012.22
  4. Step 4: Simplify right side
    12,601.22x = 121,940,463.14
  5. Step 5: Solve for x
    x = 121,940,463.14/12,601.22
  6. Step 6: Final answer
    x = 9,676.88

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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.