Home / 19,087.20-28,614.60-7,408.56

Finding the Fourth Proportional to 19,087.20, 28,614.60 and 7,408.56

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Solution

The fourth proportional to 19,087.20, 28,614.60 and 7,408.56 is: 11,106.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,087.20 : 28,614.60 = 7,408.56 : x
  2. Step 2: Convert to fraction form
    19,087.20/28,614.60 = 7,408.56/x
  3. Step 3: Cross multiply
    19,087.20x = 28,614.60 × 7,408.56
  4. Step 4: Simplify right side
    19,087.20x = 211,992,980.98
  5. Step 5: Solve for x
    x = 211,992,980.98/19,087.20
  6. Step 6: Final answer
    x = 11,106.55

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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.