Home / 15,751.07-21,736.31-8,677.34

Finding the Fourth Proportional to 15,751.07, 21,736.31 and 8,677.34

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Solution

The fourth proportional to 15,751.07, 21,736.31 and 8,677.34 is: 11,974.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751.07 : 21,736.31 = 8,677.34 : x
  2. Step 2: Convert to fraction form
    15,751.07/21,736.31 = 8,677.34/x
  3. Step 3: Cross multiply
    15,751.07x = 21,736.31 × 8,677.34
  4. Step 4: Simplify right side
    15,751.07x = 188,613,200.15
  5. Step 5: Solve for x
    x = 188,613,200.15/15,751.07
  6. Step 6: Final answer
    x = 11,974.63

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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.