Home / 13,891.35-19,170.51-7,603.72

Finding the Fourth Proportional to 13,891.35, 19,170.51 and 7,603.72

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Solution

The fourth proportional to 13,891.35, 19,170.51 and 7,603.72 is: 10,493.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.35 : 19,170.51 = 7,603.72 : x
  2. Step 2: Convert to fraction form
    13,891.35/19,170.51 = 7,603.72/x
  3. Step 3: Cross multiply
    13,891.35x = 19,170.51 × 7,603.72
  4. Step 4: Simplify right side
    13,891.35x = 145,767,190.30
  5. Step 5: Solve for x
    x = 145,767,190.30/13,891.35
  6. Step 6: Final answer
    x = 10,493.38

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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.