Home / 13,975.08-19,285.86-7,687.44

Finding the Fourth Proportional to 13,975.08, 19,285.86 and 7,687.44

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Solution

The fourth proportional to 13,975.08, 19,285.86 and 7,687.44 is: 10,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.08 : 19,285.86 = 7,687.44 : x
  2. Step 2: Convert to fraction form
    13,975.08/19,285.86 = 7,687.44/x
  3. Step 3: Cross multiply
    13,975.08x = 19,285.86 × 7,687.44
  4. Step 4: Simplify right side
    13,975.08x = 148,258,891.60
  5. Step 5: Solve for x
    x = 148,258,891.60/13,975.08
  6. Step 6: Final answer
    x = 10,608.80

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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.