Home / 7,200.45-9,936.78-4,014.07

Finding the Fourth Proportional to 7,200.45, 9,936.78 and 4,014.07

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Solution

The fourth proportional to 7,200.45, 9,936.78 and 4,014.07 is: 5,539.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.45 : 9,936.78 = 4,014.07 : x
  2. Step 2: Convert to fraction form
    7,200.45/9,936.78 = 4,014.07/x
  3. Step 3: Cross multiply
    7,200.45x = 9,936.78 × 4,014.07
  4. Step 4: Simplify right side
    7,200.45x = 39,886,930.49
  5. Step 5: Solve for x
    x = 39,886,930.49/7,200.45
  6. Step 6: Final answer
    x = 5,539.51

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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.