Home / 19,405.37-26,789.60-13,065.30

Finding the Fourth Proportional to 19,405.37, 26,789.60 and 13,065.30

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Solution

The fourth proportional to 19,405.37, 26,789.60 and 13,065.30 is: 18,036.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.37 : 26,789.60 = 13,065.30 : x
  2. Step 2: Convert to fraction form
    19,405.37/26,789.60 = 13,065.30/x
  3. Step 3: Cross multiply
    19,405.37x = 26,789.60 × 13,065.30
  4. Step 4: Simplify right side
    19,405.37x = 350,014,193.54
  5. Step 5: Solve for x
    x = 350,014,193.54/19,405.37
  6. Step 6: Final answer
    x = 18,036.97

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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.