Home / 13,992.08-19,309.20-7,704.56

Finding the Fourth Proportional to 13,992.08, 19,309.20 and 7,704.56

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Solution

The fourth proportional to 13,992.08, 19,309.20 and 7,704.56 is: 10,632.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.08 : 19,309.20 = 7,704.56 : x
  2. Step 2: Convert to fraction form
    13,992.08/19,309.20 = 7,704.56/x
  3. Step 3: Cross multiply
    13,992.08x = 19,309.20 × 7,704.56
  4. Step 4: Simplify right side
    13,992.08x = 148,768,889.95
  5. Step 5: Solve for x
    x = 148,768,889.95/13,992.08
  6. Step 6: Final answer
    x = 10,632.36

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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.