Home / 19,398.78-26,770.37-11,015.28

Finding the Fourth Proportional to 19,398.78, 26,770.37 and 11,015.28

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Solution

The fourth proportional to 19,398.78, 26,770.37 and 11,015.28 is: 15,201.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,398.78 : 26,770.37 = 11,015.28 : x
  2. Step 2: Convert to fraction form
    19,398.78/26,770.37 = 11,015.28/x
  3. Step 3: Cross multiply
    19,398.78x = 26,770.37 × 11,015.28
  4. Step 4: Simplify right side
    19,398.78x = 294,883,066.18
  5. Step 5: Solve for x
    x = 294,883,066.18/19,398.78
  6. Step 6: Final answer
    x = 15,201.11

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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.