Home / 6,642.21-9,969.45-3,357.60

Finding the Fourth Proportional to 6,642.21, 9,969.45 and 3,357.60

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Solution

The fourth proportional to 6,642.21, 9,969.45 and 3,357.60 is: 5,039.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.21 : 9,969.45 = 3,357.60 : x
  2. Step 2: Convert to fraction form
    6,642.21/9,969.45 = 3,357.60/x
  3. Step 3: Cross multiply
    6,642.21x = 9,969.45 × 3,357.60
  4. Step 4: Simplify right side
    6,642.21x = 33,473,425.32
  5. Step 5: Solve for x
    x = 33,473,425.32/6,642.21
  6. Step 6: Final answer
    x = 5,039.50

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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.