Home / 13,844.60-19,105.56-9,872.64

Finding the Fourth Proportional to 13,844.60, 19,105.56 and 9,872.64

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Solution

The fourth proportional to 13,844.60, 19,105.56 and 9,872.64 is: 13,624.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,844.60 : 19,105.56 = 9,872.64 : x
  2. Step 2: Convert to fraction form
    13,844.60/19,105.56 = 9,872.64/x
  3. Step 3: Cross multiply
    13,844.60x = 19,105.56 × 9,872.64
  4. Step 4: Simplify right side
    13,844.60x = 188,622,315.88
  5. Step 5: Solve for x
    x = 188,622,315.88/13,844.60
  6. Step 6: Final answer
    x = 13,624.25

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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.