Home / 26,172.92-39,253.88-8,638.64

Finding the Fourth Proportional to 26,172.92, 39,253.88 and 8,638.64

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Solution

The fourth proportional to 26,172.92, 39,253.88 and 8,638.64 is: 12,956.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,172.92 : 39,253.88 = 8,638.64 : x
  2. Step 2: Convert to fraction form
    26,172.92/39,253.88 = 8,638.64/x
  3. Step 3: Cross multiply
    26,172.92x = 39,253.88 × 8,638.64
  4. Step 4: Simplify right side
    26,172.92x = 339,100,137.92
  5. Step 5: Solve for x
    x = 339,100,137.92/26,172.92
  6. Step 6: Final answer
    x = 12,956.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.