Home / 13,625.05-18,801.97-7,960.32

Finding the Fourth Proportional to 13,625.05, 18,801.97 and 7,960.32

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Solution

The fourth proportional to 13,625.05, 18,801.97 and 7,960.32 is: 10,984.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.05 : 18,801.97 = 7,960.32 : x
  2. Step 2: Convert to fraction form
    13,625.05/18,801.97 = 7,960.32/x
  3. Step 3: Cross multiply
    13,625.05x = 18,801.97 × 7,960.32
  4. Step 4: Simplify right side
    13,625.05x = 149,669,697.83
  5. Step 5: Solve for x
    x = 149,669,697.83/13,625.05
  6. Step 6: Final answer
    x = 10,984.89

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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.