Home / 12,597.40-18,896.10-4,279.60

Finding the Fourth Proportional to 12,597.40, 18,896.10 and 4,279.60

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Solution

The fourth proportional to 12,597.40, 18,896.10 and 4,279.60 is: 6,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,597.40 : 18,896.10 = 4,279.60 : x
  2. Step 2: Convert to fraction form
    12,597.40/18,896.10 = 4,279.60/x
  3. Step 3: Cross multiply
    12,597.40x = 18,896.10 × 4,279.60
  4. Step 4: Simplify right side
    12,597.40x = 80,867,749.56
  5. Step 5: Solve for x
    x = 80,867,749.56/12,597.40
  6. Step 6: Final answer
    x = 6,419.40

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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.