Home / 18,379.76-25,352.24-12,634.48

Finding the Fourth Proportional to 18,379.76, 25,352.24 and 12,634.48

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Solution

The fourth proportional to 18,379.76, 25,352.24 and 12,634.48 is: 17,427.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.76 : 25,352.24 = 12,634.48 : x
  2. Step 2: Convert to fraction form
    18,379.76/25,352.24 = 12,634.48/x
  3. Step 3: Cross multiply
    18,379.76x = 25,352.24 × 12,634.48
  4. Step 4: Simplify right side
    18,379.76x = 320,312,369.24
  5. Step 5: Solve for x
    x = 320,312,369.24/18,379.76
  6. Step 6: Final answer
    x = 17,427.45

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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.