Home / 12,788.70-19,170.27-4,462.26

Finding the Fourth Proportional to 12,788.70, 19,170.27 and 4,462.26

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Solution

The fourth proportional to 12,788.70, 19,170.27 and 4,462.26 is: 6,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.70 : 19,170.27 = 4,462.26 : x
  2. Step 2: Convert to fraction form
    12,788.70/19,170.27 = 4,462.26/x
  3. Step 3: Cross multiply
    12,788.70x = 19,170.27 × 4,462.26
  4. Step 4: Simplify right side
    12,788.70x = 85,542,729.01
  5. Step 5: Solve for x
    x = 85,542,729.01/12,788.70
  6. Step 6: Final answer
    x = 6,688.93

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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.