Home / 13,781.08-19,024.50-8,480.44

Finding the Fourth Proportional to 13,781.08, 19,024.50 and 8,480.44

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Solution

The fourth proportional to 13,781.08, 19,024.50 and 8,480.44 is: 11,707.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.08 : 19,024.50 = 8,480.44 : x
  2. Step 2: Convert to fraction form
    13,781.08/19,024.50 = 8,480.44/x
  3. Step 3: Cross multiply
    13,781.08x = 19,024.50 × 8,480.44
  4. Step 4: Simplify right side
    13,781.08x = 161,336,130.78
  5. Step 5: Solve for x
    x = 161,336,130.78/13,781.08
  6. Step 6: Final answer
    x = 11,707.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.