Home / 13,659.26-18,851.19-8,357.60

Finding the Fourth Proportional to 13,659.26, 18,851.19 and 8,357.60

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Solution

The fourth proportional to 13,659.26, 18,851.19 and 8,357.60 is: 11,534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.26 : 18,851.19 = 8,357.60 : x
  2. Step 2: Convert to fraction form
    13,659.26/18,851.19 = 8,357.60/x
  3. Step 3: Cross multiply
    13,659.26x = 18,851.19 × 8,357.60
  4. Step 4: Simplify right side
    13,659.26x = 157,550,705.54
  5. Step 5: Solve for x
    x = 157,550,705.54/13,659.26
  6. Step 6: Final answer
    x = 11,534.35

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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.