Home / 12,495.30-18,738.35-4,173.09

Finding the Fourth Proportional to 12,495.30, 18,738.35 and 4,173.09

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Solution

The fourth proportional to 12,495.30, 18,738.35 and 4,173.09 is: 6,258.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.30 : 18,738.35 = 4,173.09 : x
  2. Step 2: Convert to fraction form
    12,495.30/18,738.35 = 4,173.09/x
  3. Step 3: Cross multiply
    12,495.30x = 18,738.35 × 4,173.09
  4. Step 4: Simplify right side
    12,495.30x = 78,196,800.14
  5. Step 5: Solve for x
    x = 78,196,800.14/12,495.30
  6. Step 6: Final answer
    x = 6,258.10

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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.