Home / 7,943.37-11,914.40-2,678.26

Finding the Fourth Proportional to 7,943.37, 11,914.40 and 2,678.26

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Solution

The fourth proportional to 7,943.37, 11,914.40 and 2,678.26 is: 4,017.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.37 : 11,914.40 = 2,678.26 : x
  2. Step 2: Convert to fraction form
    7,943.37/11,914.40 = 2,678.26/x
  3. Step 3: Cross multiply
    7,943.37x = 11,914.40 × 2,678.26
  4. Step 4: Simplify right side
    7,943.37x = 31,909,860.94
  5. Step 5: Solve for x
    x = 31,909,860.94/7,943.37
  6. Step 6: Final answer
    x = 4,017.17

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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.