Home / 6,973.21-9,622.77-3,989.32

Finding the Fourth Proportional to 6,973.21, 9,622.77 and 3,989.32

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Solution

The fourth proportional to 6,973.21, 9,622.77 and 3,989.32 is: 5,505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,973.21 : 9,622.77 = 3,989.32 : x
  2. Step 2: Convert to fraction form
    6,973.21/9,622.77 = 3,989.32/x
  3. Step 3: Cross multiply
    6,973.21x = 9,622.77 × 3,989.32
  4. Step 4: Simplify right side
    6,973.21x = 38,388,329.94
  5. Step 5: Solve for x
    x = 38,388,329.94/6,973.21
  6. Step 6: Final answer
    x = 5,505.11

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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.