Home / 15,418.32-21,268.60-9,751.32

Finding the Fourth Proportional to 15,418.32, 21,268.60 and 9,751.32

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Solution

The fourth proportional to 15,418.32, 21,268.60 and 9,751.32 is: 13,451.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.32 : 21,268.60 = 9,751.32 : x
  2. Step 2: Convert to fraction form
    15,418.32/21,268.60 = 9,751.32/x
  3. Step 3: Cross multiply
    15,418.32x = 21,268.60 × 9,751.32
  4. Step 4: Simplify right side
    15,418.32x = 207,396,924.55
  5. Step 5: Solve for x
    x = 207,396,924.55/15,418.32
  6. Step 6: Final answer
    x = 13,451.33

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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.