Home / 14,122.36-19,489.06-7,749.58

Finding the Fourth Proportional to 14,122.36, 19,489.06 and 7,749.58

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Solution

The fourth proportional to 14,122.36, 19,489.06 and 7,749.58 is: 10,694.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.36 : 19,489.06 = 7,749.58 : x
  2. Step 2: Convert to fraction form
    14,122.36/19,489.06 = 7,749.58/x
  3. Step 3: Cross multiply
    14,122.36x = 19,489.06 × 7,749.58
  4. Step 4: Simplify right side
    14,122.36x = 151,032,063.64
  5. Step 5: Solve for x
    x = 151,032,063.64/14,122.36
  6. Step 6: Final answer
    x = 10,694.54

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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.