Home / 13,619.36-18,796.77-8,317.24

Finding the Fourth Proportional to 13,619.36, 18,796.77 and 8,317.24

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Solution

The fourth proportional to 13,619.36, 18,796.77 and 8,317.24 is: 11,479.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.36 : 18,796.77 = 8,317.24 : x
  2. Step 2: Convert to fraction form
    13,619.36/18,796.77 = 8,317.24/x
  3. Step 3: Cross multiply
    13,619.36x = 18,796.77 × 8,317.24
  4. Step 4: Simplify right side
    13,619.36x = 156,337,247.31
  5. Step 5: Solve for x
    x = 156,337,247.31/13,619.36
  6. Step 6: Final answer
    x = 11,479.05

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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.