Home / 9,893.88-13,655.79-6,120.36

Finding the Fourth Proportional to 9,893.88, 13,655.79 and 6,120.36

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Solution

The fourth proportional to 9,893.88, 13,655.79 and 6,120.36 is: 8,447.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,893.88 : 13,655.79 = 6,120.36 : x
  2. Step 2: Convert to fraction form
    9,893.88/13,655.79 = 6,120.36/x
  3. Step 3: Cross multiply
    9,893.88x = 13,655.79 × 6,120.36
  4. Step 4: Simplify right side
    9,893.88x = 83,578,350.88
  5. Step 5: Solve for x
    x = 83,578,350.88/9,893.88
  6. Step 6: Final answer
    x = 8,447.48

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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.