Home / 19,847.11-27,384.69-11,458.75

Finding the Fourth Proportional to 19,847.11, 27,384.69 and 11,458.75

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Solution

The fourth proportional to 19,847.11, 27,384.69 and 11,458.75 is: 15,810.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,847.11 : 27,384.69 = 11,458.75 : x
  2. Step 2: Convert to fraction form
    19,847.11/27,384.69 = 11,458.75/x
  3. Step 3: Cross multiply
    19,847.11x = 27,384.69 × 11,458.75
  4. Step 4: Simplify right side
    19,847.11x = 313,794,316.54
  5. Step 5: Solve for x
    x = 313,794,316.54/19,847.11
  6. Step 6: Final answer
    x = 15,810.58

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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.