Home / 8,200.36-11,319.78-5,412.52

Finding the Fourth Proportional to 8,200.36, 11,319.78 and 5,412.52

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Solution

The fourth proportional to 8,200.36, 11,319.78 and 5,412.52 is: 7,471.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,200.36 : 11,319.78 = 5,412.52 : x
  2. Step 2: Convert to fraction form
    8,200.36/11,319.78 = 5,412.52/x
  3. Step 3: Cross multiply
    8,200.36x = 11,319.78 × 5,412.52
  4. Step 4: Simplify right side
    8,200.36x = 61,268,535.65
  5. Step 5: Solve for x
    x = 61,268,535.65/8,200.36
  6. Step 6: Final answer
    x = 7,471.44

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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.