Home / 7,984.45-11,020.39-4,629.13

Finding the Fourth Proportional to 7,984.45, 11,020.39 and 4,629.13

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Solution

The fourth proportional to 7,984.45, 11,020.39 and 4,629.13 is: 6,389.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.45 : 11,020.39 = 4,629.13 : x
  2. Step 2: Convert to fraction form
    7,984.45/11,020.39 = 4,629.13/x
  3. Step 3: Cross multiply
    7,984.45x = 11,020.39 × 4,629.13
  4. Step 4: Simplify right side
    7,984.45x = 51,014,778.84
  5. Step 5: Solve for x
    x = 51,014,778.84/7,984.45
  6. Step 6: Final answer
    x = 6,389.27

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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.