Home / 13,772.04-19,008.18-8,181.96

Finding the Fourth Proportional to 13,772.04, 19,008.18 and 8,181.96

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Solution

The fourth proportional to 13,772.04, 19,008.18 and 8,181.96 is: 11,292.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.04 : 19,008.18 = 8,181.96 : x
  2. Step 2: Convert to fraction form
    13,772.04/19,008.18 = 8,181.96/x
  3. Step 3: Cross multiply
    13,772.04x = 19,008.18 × 8,181.96
  4. Step 4: Simplify right side
    13,772.04x = 155,524,168.43
  5. Step 5: Solve for x
    x = 155,524,168.43/13,772.04
  6. Step 6: Final answer
    x = 11,292.75

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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.