Home / 13,026.48-17,976.40-7,057.79

Finding the Fourth Proportional to 13,026.48, 17,976.40 and 7,057.79

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Solution

The fourth proportional to 13,026.48, 17,976.40 and 7,057.79 is: 9,739.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,026.48 : 17,976.40 = 7,057.79 : x
  2. Step 2: Convert to fraction form
    13,026.48/17,976.40 = 7,057.79/x
  3. Step 3: Cross multiply
    13,026.48x = 17,976.40 × 7,057.79
  4. Step 4: Simplify right side
    13,026.48x = 126,873,620.87
  5. Step 5: Solve for x
    x = 126,873,620.87/13,026.48
  6. Step 6: Final answer
    x = 9,739.67

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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.