Home / 6,975.55-9,623.54-3,989.79

Finding the Fourth Proportional to 6,975.55, 9,623.54 and 3,989.79

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Solution

The fourth proportional to 6,975.55, 9,623.54 and 3,989.79 is: 5,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,975.55 : 9,623.54 = 3,989.79 : x
  2. Step 2: Convert to fraction form
    6,975.55/9,623.54 = 3,989.79/x
  3. Step 3: Cross multiply
    6,975.55x = 9,623.54 × 3,989.79
  4. Step 4: Simplify right side
    6,975.55x = 38,395,913.63
  5. Step 5: Solve for x
    x = 38,395,913.63/6,975.55
  6. Step 6: Final answer
    x = 5,504.36

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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.