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Finding the Fourth Proportional to 15,069.83, 20,794.43 and 8,355.39

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Solution

The fourth proportional to 15,069.83, 20,794.43 and 8,355.39 is: 11,529.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,069.83 : 20,794.43 = 8,355.39 : x
  2. Step 2: Convert to fraction form
    15,069.83/20,794.43 = 8,355.39/x
  3. Step 3: Cross multiply
    15,069.83x = 20,794.43 × 8,355.39
  4. Step 4: Simplify right side
    15,069.83x = 173,745,572.48
  5. Step 5: Solve for x
    x = 173,745,572.48/15,069.83
  6. Step 6: Final answer
    x = 11,529.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.