Home / 19,140.74-26,410.36-11,181.43

Finding the Fourth Proportional to 19,140.74, 26,410.36 and 11,181.43

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Solution

The fourth proportional to 19,140.74, 26,410.36 and 11,181.43 is: 15,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.74 : 26,410.36 = 11,181.43 : x
  2. Step 2: Convert to fraction form
    19,140.74/26,410.36 = 11,181.43/x
  3. Step 3: Cross multiply
    19,140.74x = 26,410.36 × 11,181.43
  4. Step 4: Simplify right side
    19,140.74x = 295,305,497.64
  5. Step 5: Solve for x
    x = 295,305,497.64/19,140.74
  6. Step 6: Final answer
    x = 15,428.11

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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.