Home / 19,721.74-27,209.91-11,336.62

Finding the Fourth Proportional to 19,721.74, 27,209.91 and 11,336.62

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Solution

The fourth proportional to 19,721.74, 27,209.91 and 11,336.62 is: 15,641.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.74 : 27,209.91 = 11,336.62 : x
  2. Step 2: Convert to fraction form
    19,721.74/27,209.91 = 11,336.62/x
  3. Step 3: Cross multiply
    19,721.74x = 27,209.91 × 11,336.62
  4. Step 4: Simplify right side
    19,721.74x = 308,468,409.90
  5. Step 5: Solve for x
    x = 308,468,409.90/19,721.74
  6. Step 6: Final answer
    x = 15,641.03

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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.