Home / 13,207.37-18,225.25-7,542.43

Finding the Fourth Proportional to 13,207.37, 18,225.25 and 7,542.43

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Solution

The fourth proportional to 13,207.37, 18,225.25 and 7,542.43 is: 10,408.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.37 : 18,225.25 = 7,542.43 : x
  2. Step 2: Convert to fraction form
    13,207.37/18,225.25 = 7,542.43/x
  3. Step 3: Cross multiply
    13,207.37x = 18,225.25 × 7,542.43
  4. Step 4: Simplify right side
    13,207.37x = 137,462,634.65
  5. Step 5: Solve for x
    x = 137,462,634.65/13,207.37
  6. Step 6: Final answer
    x = 10,408.02

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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.