Home / 15,815.26-21,824.12-8,741.26

Finding the Fourth Proportional to 15,815.26, 21,824.12 and 8,741.26

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Solution

The fourth proportional to 15,815.26, 21,824.12 and 8,741.26 is: 12,062.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,815.26 : 21,824.12 = 8,741.26 : x
  2. Step 2: Convert to fraction form
    15,815.26/21,824.12 = 8,741.26/x
  3. Step 3: Cross multiply
    15,815.26x = 21,824.12 × 8,741.26
  4. Step 4: Simplify right side
    15,815.26x = 190,770,154.36
  5. Step 5: Solve for x
    x = 190,770,154.36/15,815.26
  6. Step 6: Final answer
    x = 12,062.41

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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.