Home / 12,607.29-18,906.44-4,172.25

Finding the Fourth Proportional to 12,607.29, 18,906.44 and 4,172.25

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Solution

The fourth proportional to 12,607.29, 18,906.44 and 4,172.25 is: 6,256.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.29 : 18,906.44 = 4,172.25 : x
  2. Step 2: Convert to fraction form
    12,607.29/18,906.44 = 4,172.25/x
  3. Step 3: Cross multiply
    12,607.29x = 18,906.44 × 4,172.25
  4. Step 4: Simplify right side
    12,607.29x = 78,882,373.43
  5. Step 5: Solve for x
    x = 78,882,373.43/12,607.29
  6. Step 6: Final answer
    x = 6,256.89

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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.