Home / 19,717.74-27,211.10-11,221.07

Finding the Fourth Proportional to 19,717.74, 27,211.10 and 11,221.07

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Solution

The fourth proportional to 19,717.74, 27,211.10 and 11,221.07 is: 15,485.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,717.74 : 27,211.10 = 11,221.07 : x
  2. Step 2: Convert to fraction form
    19,717.74/27,211.10 = 11,221.07/x
  3. Step 3: Cross multiply
    19,717.74x = 27,211.10 × 11,221.07
  4. Step 4: Simplify right side
    19,717.74x = 305,337,465.72
  5. Step 5: Solve for x
    x = 305,337,465.72/19,717.74
  6. Step 6: Final answer
    x = 15,485.42

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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.