Home / 13,842.76-20,764.14-5,074.36

Finding the Fourth Proportional to 13,842.76, 20,764.14 and 5,074.36

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Solution

The fourth proportional to 13,842.76, 20,764.14 and 5,074.36 is: 7,611.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.76 : 20,764.14 = 5,074.36 : x
  2. Step 2: Convert to fraction form
    13,842.76/20,764.14 = 5,074.36/x
  3. Step 3: Cross multiply
    13,842.76x = 20,764.14 × 5,074.36
  4. Step 4: Simplify right side
    13,842.76x = 105,364,721.45
  5. Step 5: Solve for x
    x = 105,364,721.45/13,842.76
  6. Step 6: Final answer
    x = 7,611.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.