Home / 14,121.64-21,079.31-13,093.75

Finding the Fourth Proportional to 14,121.64, 21,079.31 and 13,093.75

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Solution

The fourth proportional to 14,121.64, 21,079.31 and 13,093.75 is: 19,544.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.64 : 21,079.31 = 13,093.75 : x
  2. Step 2: Convert to fraction form
    14,121.64/21,079.31 = 13,093.75/x
  3. Step 3: Cross multiply
    14,121.64x = 21,079.31 × 13,093.75
  4. Step 4: Simplify right side
    14,121.64x = 276,007,215.31
  5. Step 5: Solve for x
    x = 276,007,215.31/14,121.64
  6. Step 6: Final answer
    x = 19,544.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.