Home / 13,874.06-19,148.09-7,825.55

Finding the Fourth Proportional to 13,874.06, 19,148.09 and 7,825.55

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Solution

The fourth proportional to 13,874.06, 19,148.09 and 7,825.55 is: 10,800.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,874.06 : 19,148.09 = 7,825.55 : x
  2. Step 2: Convert to fraction form
    13,874.06/19,148.09 = 7,825.55/x
  3. Step 3: Cross multiply
    13,874.06x = 19,148.09 × 7,825.55
  4. Step 4: Simplify right side
    13,874.06x = 149,844,200.83
  5. Step 5: Solve for x
    x = 149,844,200.83/13,874.06
  6. Step 6: Final answer
    x = 10,800.31

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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.