Home / 13,490.26-20,236.60-3,629.32

Finding the Fourth Proportional to 13,490.26, 20,236.60 and 3,629.32

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Solution

The fourth proportional to 13,490.26, 20,236.60 and 3,629.32 is: 5,444.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.26 : 20,236.60 = 3,629.32 : x
  2. Step 2: Convert to fraction form
    13,490.26/20,236.60 = 3,629.32/x
  3. Step 3: Cross multiply
    13,490.26x = 20,236.60 × 3,629.32
  4. Step 4: Simplify right side
    13,490.26x = 73,445,097.11
  5. Step 5: Solve for x
    x = 73,445,097.11/13,490.26
  6. Step 6: Final answer
    x = 5,444.31

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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.