Home / 13,975.36-19,285.68-7,687.60

Finding the Fourth Proportional to 13,975.36, 19,285.68 and 7,687.60

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Solution

The fourth proportional to 13,975.36, 19,285.68 and 7,687.60 is: 10,608.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.36 : 19,285.68 = 7,687.60 : x
  2. Step 2: Convert to fraction form
    13,975.36/19,285.68 = 7,687.60/x
  3. Step 3: Cross multiply
    13,975.36x = 19,285.68 × 7,687.60
  4. Step 4: Simplify right side
    13,975.36x = 148,260,593.57
  5. Step 5: Solve for x
    x = 148,260,593.57/13,975.36
  6. Step 6: Final answer
    x = 10,608.71

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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.