Home / 15,741.33-21,723.25-8,571.51

Finding the Fourth Proportional to 15,741.33, 21,723.25 and 8,571.51

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Solution

The fourth proportional to 15,741.33, 21,723.25 and 8,571.51 is: 11,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.33 : 21,723.25 = 8,571.51 : x
  2. Step 2: Convert to fraction form
    15,741.33/21,723.25 = 8,571.51/x
  3. Step 3: Cross multiply
    15,741.33x = 21,723.25 × 8,571.51
  4. Step 4: Simplify right side
    15,741.33x = 186,201,054.61
  5. Step 5: Solve for x
    x = 186,201,054.61/15,741.33
  6. Step 6: Final answer
    x = 11,828.80

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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.