Home / 14,066.78-19,435.55-11,105.28

Finding the Fourth Proportional to 14,066.78, 19,435.55 and 11,105.28

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Solution

The fourth proportional to 14,066.78, 19,435.55 and 11,105.28 is: 15,343.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,066.78 : 19,435.55 = 11,105.28 : x
  2. Step 2: Convert to fraction form
    14,066.78/19,435.55 = 11,105.28/x
  3. Step 3: Cross multiply
    14,066.78x = 19,435.55 × 11,105.28
  4. Step 4: Simplify right side
    14,066.78x = 215,837,169.18
  5. Step 5: Solve for x
    x = 215,837,169.18/14,066.78
  6. Step 6: Final answer
    x = 15,343.76

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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.