Home / 13,888.24-20,825.56-6,865.98

Finding the Fourth Proportional to 13,888.24, 20,825.56 and 6,865.98

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Solution

The fourth proportional to 13,888.24, 20,825.56 and 6,865.98 is: 10,295.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.24 : 20,825.56 = 6,865.98 : x
  2. Step 2: Convert to fraction form
    13,888.24/20,825.56 = 6,865.98/x
  3. Step 3: Cross multiply
    13,888.24x = 20,825.56 × 6,865.98
  4. Step 4: Simplify right side
    13,888.24x = 142,987,878.45
  5. Step 5: Solve for x
    x = 142,987,878.45/13,888.24
  6. Step 6: Final answer
    x = 10,295.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.