Home / 19,102.26-26,343.72-12,380.88

Finding the Fourth Proportional to 19,102.26, 26,343.72 and 12,380.88

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Solution

The fourth proportional to 19,102.26, 26,343.72 and 12,380.88 is: 17,074.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,102.26 : 26,343.72 = 12,380.88 : x
  2. Step 2: Convert to fraction form
    19,102.26/26,343.72 = 12,380.88/x
  3. Step 3: Cross multiply
    19,102.26x = 26,343.72 × 12,380.88
  4. Step 4: Simplify right side
    19,102.26x = 326,158,436.07
  5. Step 5: Solve for x
    x = 326,158,436.07/19,102.26
  6. Step 6: Final answer
    x = 17,074.34

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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.