Home / 12,921.19-17,832.26-7,256.32

Finding the Fourth Proportional to 12,921.19, 17,832.26 and 7,256.32

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Solution

The fourth proportional to 12,921.19, 17,832.26 and 7,256.32 is: 10,014.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921.19 : 17,832.26 = 7,256.32 : x
  2. Step 2: Convert to fraction form
    12,921.19/17,832.26 = 7,256.32/x
  3. Step 3: Cross multiply
    12,921.19x = 17,832.26 × 7,256.32
  4. Step 4: Simplify right side
    12,921.19x = 129,396,558.44
  5. Step 5: Solve for x
    x = 129,396,558.44/12,921.19
  6. Step 6: Final answer
    x = 10,014.29

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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.