Home / 13,887.27-20,927.51-12,571.43

Finding the Fourth Proportional to 13,887.27, 20,927.51 and 12,571.43

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Solution

The fourth proportional to 13,887.27, 20,927.51 and 12,571.43 is: 18,944.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.27 : 20,927.51 = 12,571.43 : x
  2. Step 2: Convert to fraction form
    13,887.27/20,927.51 = 12,571.43/x
  3. Step 3: Cross multiply
    13,887.27x = 20,927.51 × 12,571.43
  4. Step 4: Simplify right side
    13,887.27x = 263,088,653.83
  5. Step 5: Solve for x
    x = 263,088,653.83/13,887.27
  6. Step 6: Final answer
    x = 18,944.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.