Home / 15,075.69-20,804.31-8,361.33

Finding the Fourth Proportional to 15,075.69, 20,804.31 and 8,361.33

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Solution

The fourth proportional to 15,075.69, 20,804.31 and 8,361.33 is: 11,538.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.69 : 20,804.31 = 8,361.33 : x
  2. Step 2: Convert to fraction form
    15,075.69/20,804.31 = 8,361.33/x
  3. Step 3: Cross multiply
    15,075.69x = 20,804.31 × 8,361.33
  4. Step 4: Simplify right side
    15,075.69x = 173,951,623.32
  5. Step 5: Solve for x
    x = 173,951,623.32/15,075.69
  6. Step 6: Final answer
    x = 11,538.55

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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.