Home / 18,956.16-26,165.68-12,996.60

Finding the Fourth Proportional to 18,956.16, 26,165.68 and 12,996.60

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Solution

The fourth proportional to 18,956.16, 26,165.68 and 12,996.60 is: 17,939.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956.16 : 26,165.68 = 12,996.60 : x
  2. Step 2: Convert to fraction form
    18,956.16/26,165.68 = 12,996.60/x
  3. Step 3: Cross multiply
    18,956.16x = 26,165.68 × 12,996.60
  4. Step 4: Simplify right side
    18,956.16x = 340,064,876.69
  5. Step 5: Solve for x
    x = 340,064,876.69/18,956.16
  6. Step 6: Final answer
    x = 17,939.54

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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.