Home / 13,076.06-19,615.48-4,188.21

Finding the Fourth Proportional to 13,076.06, 19,615.48 and 4,188.21

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Solution

The fourth proportional to 13,076.06, 19,615.48 and 4,188.21 is: 6,282.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.06 : 19,615.48 = 4,188.21 : x
  2. Step 2: Convert to fraction form
    13,076.06/19,615.48 = 4,188.21/x
  3. Step 3: Cross multiply
    13,076.06x = 19,615.48 × 4,188.21
  4. Step 4: Simplify right side
    13,076.06x = 82,153,749.49
  5. Step 5: Solve for x
    x = 82,153,749.49/13,076.06
  6. Step 6: Final answer
    x = 6,282.76

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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.