Home / 7,357.20-11,021.40-4,426.80

Finding the Fourth Proportional to 7,357.20, 11,021.40 and 4,426.80

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Solution

The fourth proportional to 7,357.20, 11,021.40 and 4,426.80 is: 6,631.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,357.20 : 11,021.40 = 4,426.80 : x
  2. Step 2: Convert to fraction form
    7,357.20/11,021.40 = 4,426.80/x
  3. Step 3: Cross multiply
    7,357.20x = 11,021.40 × 4,426.80
  4. Step 4: Simplify right side
    7,357.20x = 48,789,533.52
  5. Step 5: Solve for x
    x = 48,789,533.52/7,357.20
  6. Step 6: Final answer
    x = 6,631.54

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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.