Home / 8,986.44-12,400.39-5,210.83

Finding the Fourth Proportional to 8,986.44, 12,400.39 and 5,210.83

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Solution

The fourth proportional to 8,986.44, 12,400.39 and 5,210.83 is: 7,190.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.44 : 12,400.39 = 5,210.83 : x
  2. Step 2: Convert to fraction form
    8,986.44/12,400.39 = 5,210.83/x
  3. Step 3: Cross multiply
    8,986.44x = 12,400.39 × 5,210.83
  4. Step 4: Simplify right side
    8,986.44x = 64,616,346.24
  5. Step 5: Solve for x
    x = 64,616,346.24/8,986.44
  6. Step 6: Final answer
    x = 7,190.42

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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.