Home / 18,631.08-27,946.68-11,691

Finding the Fourth Proportional to 18,631.08, 27,946.68 and 11,691

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Solution

The fourth proportional to 18,631.08, 27,946.68 and 11,691 is: 17,536.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.08 : 27,946.68 = 11,691 : x
  2. Step 2: Convert to fraction form
    18,631.08/27,946.68 = 11,691/x
  3. Step 3: Cross multiply
    18,631.08x = 27,946.68 × 11,691
  4. Step 4: Simplify right side
    18,631.08x = 326,724,635.88
  5. Step 5: Solve for x
    x = 326,724,635.88/18,631.08
  6. Step 6: Final answer
    x = 17,536.54

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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.