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Finding the Fourth Proportional to 12,873.44, 19,277.05 and 8,919.06

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Solution

The fourth proportional to 12,873.44, 19,277.05 and 8,919.06 is: 13,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873.44 : 19,277.05 = 8,919.06 : x
  2. Step 2: Convert to fraction form
    12,873.44/19,277.05 = 8,919.06/x
  3. Step 3: Cross multiply
    12,873.44x = 19,277.05 × 8,919.06
  4. Step 4: Simplify right side
    12,873.44x = 171,933,165.57
  5. Step 5: Solve for x
    x = 171,933,165.57/12,873.44
  6. Step 6: Final answer
    x = 13,355.65

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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.