Home / 19,317.88-28,989.80-6,837.85

Finding the Fourth Proportional to 19,317.88, 28,989.80 and 6,837.85

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Solution

The fourth proportional to 19,317.88, 28,989.80 and 6,837.85 is: 10,261.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,317.88 : 28,989.80 = 6,837.85 : x
  2. Step 2: Convert to fraction form
    19,317.88/28,989.80 = 6,837.85/x
  3. Step 3: Cross multiply
    19,317.88x = 28,989.80 × 6,837.85
  4. Step 4: Simplify right side
    19,317.88x = 198,227,903.93
  5. Step 5: Solve for x
    x = 198,227,903.93/19,317.88
  6. Step 6: Final answer
    x = 10,261.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.