Home / 14,788.99-20,407.73-8,074.75

Finding the Fourth Proportional to 14,788.99, 20,407.73 and 8,074.75

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Solution

The fourth proportional to 14,788.99, 20,407.73 and 8,074.75 is: 11,142.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,788.99 : 20,407.73 = 8,074.75 : x
  2. Step 2: Convert to fraction form
    14,788.99/20,407.73 = 8,074.75/x
  3. Step 3: Cross multiply
    14,788.99x = 20,407.73 × 8,074.75
  4. Step 4: Simplify right side
    14,788.99x = 164,787,277.44
  5. Step 5: Solve for x
    x = 164,787,277.44/14,788.99
  6. Step 6: Final answer
    x = 11,142.56

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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.