Home / 7,840.14-11,759.81-1,996.40

Finding the Fourth Proportional to 7,840.14, 11,759.81 and 1,996.40

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Solution

The fourth proportional to 7,840.14, 11,759.81 and 1,996.40 is: 2,994.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.14 : 11,759.81 = 1,996.40 : x
  2. Step 2: Convert to fraction form
    7,840.14/11,759.81 = 1,996.40/x
  3. Step 3: Cross multiply
    7,840.14x = 11,759.81 × 1,996.40
  4. Step 4: Simplify right side
    7,840.14x = 23,477,215.90
  5. Step 5: Solve for x
    x = 23,477,215.90/7,840.14
  6. Step 6: Final answer
    x = 2,994.49

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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.