Home / 13,781.44-19,018.04-8,039.99

Finding the Fourth Proportional to 13,781.44, 19,018.04 and 8,039.99

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Solution

The fourth proportional to 13,781.44, 19,018.04 and 8,039.99 is: 11,094.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.44 : 19,018.04 = 8,039.99 : x
  2. Step 2: Convert to fraction form
    13,781.44/19,018.04 = 8,039.99/x
  3. Step 3: Cross multiply
    13,781.44x = 19,018.04 × 8,039.99
  4. Step 4: Simplify right side
    13,781.44x = 152,904,851.42
  5. Step 5: Solve for x
    x = 152,904,851.42/13,781.44
  6. Step 6: Final answer
    x = 11,094.99

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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.