Home / 13,891.88-19,170.79-7,604.25

Finding the Fourth Proportional to 13,891.88, 19,170.79 and 7,604.25

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Solution

The fourth proportional to 13,891.88, 19,170.79 and 7,604.25 is: 10,493.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.88 : 19,170.79 = 7,604.25 : x
  2. Step 2: Convert to fraction form
    13,891.88/19,170.79 = 7,604.25/x
  3. Step 3: Cross multiply
    13,891.88x = 19,170.79 × 7,604.25
  4. Step 4: Simplify right side
    13,891.88x = 145,779,479.86
  5. Step 5: Solve for x
    x = 145,779,479.86/13,891.88
  6. Step 6: Final answer
    x = 10,493.86

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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.