Home / 13,856.16-20,784.09-3,995.37

Finding the Fourth Proportional to 13,856.16, 20,784.09 and 3,995.37

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Solution

The fourth proportional to 13,856.16, 20,784.09 and 3,995.37 is: 5,993.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856.16 : 20,784.09 = 3,995.37 : x
  2. Step 2: Convert to fraction form
    13,856.16/20,784.09 = 3,995.37/x
  3. Step 3: Cross multiply
    13,856.16x = 20,784.09 × 3,995.37
  4. Step 4: Simplify right side
    13,856.16x = 83,040,129.66
  5. Step 5: Solve for x
    x = 83,040,129.66/13,856.16
  6. Step 6: Final answer
    x = 5,993.01

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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.