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Finding the Fourth Proportional to 18,055.00, 27,021.60 and 12,894.39

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Solution

The fourth proportional to 18,055.00, 27,021.60 and 12,894.39 is: 19,298.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,055.00 : 27,021.60 = 12,894.39 : x
  2. Step 2: Convert to fraction form
    18,055.00/27,021.60 = 12,894.39/x
  3. Step 3: Cross multiply
    18,055.00x = 27,021.60 × 12,894.39
  4. Step 4: Simplify right side
    18,055.00x = 348,427,048.82
  5. Step 5: Solve for x
    x = 348,427,048.82/18,055.00
  6. Step 6: Final answer
    x = 19,298.09

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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.