Home / 7,144.20-9,914.40-6,852.60

Finding the Fourth Proportional to 7,144.20, 9,914.40 and 6,852.60

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Solution

The fourth proportional to 7,144.20, 9,914.40 and 6,852.60 is: 9,509.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.20 : 9,914.40 = 6,852.60 : x
  2. Step 2: Convert to fraction form
    7,144.20/9,914.40 = 6,852.60/x
  3. Step 3: Cross multiply
    7,144.20x = 9,914.40 × 6,852.60
  4. Step 4: Simplify right side
    7,144.20x = 67,939,417.44
  5. Step 5: Solve for x
    x = 67,939,417.44/7,144.20
  6. Step 6: Final answer
    x = 9,509.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.