Home / 15,840.33-21,858.75-8,766.33

Finding the Fourth Proportional to 15,840.33, 21,858.75 and 8,766.33

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Solution

The fourth proportional to 15,840.33, 21,858.75 and 8,766.33 is: 12,097.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,840.33 : 21,858.75 = 8,766.33 : x
  2. Step 2: Convert to fraction form
    15,840.33/21,858.75 = 8,766.33/x
  3. Step 3: Cross multiply
    15,840.33x = 21,858.75 × 8,766.33
  4. Step 4: Simplify right side
    15,840.33x = 191,621,015.89
  5. Step 5: Solve for x
    x = 191,621,015.89/15,840.33
  6. Step 6: Final answer
    x = 12,097.03

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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.