Home / 12,811.07-19,217.60-4,917.37

Finding the Fourth Proportional to 12,811.07, 19,217.60 and 4,917.37

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Solution

The fourth proportional to 12,811.07, 19,217.60 and 4,917.37 is: 7,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.07 : 19,217.60 = 4,917.37 : x
  2. Step 2: Convert to fraction form
    12,811.07/19,217.60 = 4,917.37/x
  3. Step 3: Cross multiply
    12,811.07x = 19,217.60 × 4,917.37
  4. Step 4: Simplify right side
    12,811.07x = 94,500,049.71
  5. Step 5: Solve for x
    x = 94,500,049.71/12,811.07
  6. Step 6: Final answer
    x = 7,376.44

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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.