Home / 13,899.24-19,181.22-7,611.48

Finding the Fourth Proportional to 13,899.24, 19,181.22 and 7,611.48

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Solution

The fourth proportional to 13,899.24, 19,181.22 and 7,611.48 is: 10,503.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.24 : 19,181.22 = 7,611.48 : x
  2. Step 2: Convert to fraction form
    13,899.24/19,181.22 = 7,611.48/x
  3. Step 3: Cross multiply
    13,899.24x = 19,181.22 × 7,611.48
  4. Step 4: Simplify right side
    13,899.24x = 145,997,472.41
  5. Step 5: Solve for x
    x = 145,997,472.41/13,899.24
  6. Step 6: Final answer
    x = 10,503.99

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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.