Home / 12,541.50-18,811.98-3,181.14

Finding the Fourth Proportional to 12,541.50, 18,811.98 and 3,181.14

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Solution

The fourth proportional to 12,541.50, 18,811.98 and 3,181.14 is: 4,771.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,541.50 : 18,811.98 = 3,181.14 : x
  2. Step 2: Convert to fraction form
    12,541.50/18,811.98 = 3,181.14/x
  3. Step 3: Cross multiply
    12,541.50x = 18,811.98 × 3,181.14
  4. Step 4: Simplify right side
    12,541.50x = 59,843,542.06
  5. Step 5: Solve for x
    x = 59,843,542.06/12,541.50
  6. Step 6: Final answer
    x = 4,771.64

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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.