Home / 13,344.77-18,415.79-7,376.44

Finding the Fourth Proportional to 13,344.77, 18,415.79 and 7,376.44

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Solution

The fourth proportional to 13,344.77, 18,415.79 and 7,376.44 is: 10,179.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.77 : 18,415.79 = 7,376.44 : x
  2. Step 2: Convert to fraction form
    13,344.77/18,415.79 = 7,376.44/x
  3. Step 3: Cross multiply
    13,344.77x = 18,415.79 × 7,376.44
  4. Step 4: Simplify right side
    13,344.77x = 135,842,923.36
  5. Step 5: Solve for x
    x = 135,842,923.36/13,344.77
  6. Step 6: Final answer
    x = 10,179.49

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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.