Home / 19,697.09-27,149.31-13,947.00

Finding the Fourth Proportional to 19,697.09, 27,149.31 and 13,947.00

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Solution

The fourth proportional to 19,697.09, 27,149.31 and 13,947.00 is: 19,223.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,697.09 : 27,149.31 = 13,947.00 : x
  2. Step 2: Convert to fraction form
    19,697.09/27,149.31 = 13,947.00/x
  3. Step 3: Cross multiply
    19,697.09x = 27,149.31 × 13,947.00
  4. Step 4: Simplify right side
    19,697.09x = 378,651,221.09
  5. Step 5: Solve for x
    x = 378,651,221.09/19,697.09
  6. Step 6: Final answer
    x = 19,223.72

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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.