Home / 6,629.40-9,927.90-4,426.20

Finding the Fourth Proportional to 6,629.40, 9,927.90 and 4,426.20

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Solution

The fourth proportional to 6,629.40, 9,927.90 and 4,426.20 is: 6,628.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629.40 : 9,927.90 = 4,426.20 : x
  2. Step 2: Convert to fraction form
    6,629.40/9,927.90 = 4,426.20/x
  3. Step 3: Cross multiply
    6,629.40x = 9,927.90 × 4,426.20
  4. Step 4: Simplify right side
    6,629.40x = 43,942,870.98
  5. Step 5: Solve for x
    x = 43,942,870.98/6,629.40
  6. Step 6: Final answer
    x = 6,628.48

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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.