Home / 19,611.75-29,408.36-7,122.97

Finding the Fourth Proportional to 19,611.75, 29,408.36 and 7,122.97

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Solution

The fourth proportional to 19,611.75, 29,408.36 and 7,122.97 is: 10,681.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.75 : 29,408.36 = 7,122.97 : x
  2. Step 2: Convert to fraction form
    19,611.75/29,408.36 = 7,122.97/x
  3. Step 3: Cross multiply
    19,611.75x = 29,408.36 × 7,122.97
  4. Step 4: Simplify right side
    19,611.75x = 209,474,718.99
  5. Step 5: Solve for x
    x = 209,474,718.99/19,611.75
  6. Step 6: Final answer
    x = 10,681.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.