Home / 13,992.21-19,309.59-7,704.59

Finding the Fourth Proportional to 13,992.21, 19,309.59 and 7,704.59

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Solution

The fourth proportional to 13,992.21, 19,309.59 and 7,704.59 is: 10,632.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.21 : 19,309.59 = 7,704.59 : x
  2. Step 2: Convert to fraction form
    13,992.21/19,309.59 = 7,704.59/x
  3. Step 3: Cross multiply
    13,992.21x = 19,309.59 × 7,704.59
  4. Step 4: Simplify right side
    13,992.21x = 148,772,377.47
  5. Step 5: Solve for x
    x = 148,772,377.47/13,992.21
  6. Step 6: Final answer
    x = 10,632.51

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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.