Home / 19,709.70-27,189.96-13,338.52

Finding the Fourth Proportional to 19,709.70, 27,189.96 and 13,338.52

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Solution

The fourth proportional to 19,709.70, 27,189.96 and 13,338.52 is: 18,400.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,709.70 : 27,189.96 = 13,338.52 : x
  2. Step 2: Convert to fraction form
    19,709.70/27,189.96 = 13,338.52/x
  3. Step 3: Cross multiply
    19,709.70x = 27,189.96 × 13,338.52
  4. Step 4: Simplify right side
    19,709.70x = 362,673,825.26
  5. Step 5: Solve for x
    x = 362,673,825.26/19,709.70
  6. Step 6: Final answer
    x = 18,400.78

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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.