Home / 8,689.23-13,023.75-3,999.39

Finding the Fourth Proportional to 8,689.23, 13,023.75 and 3,999.39

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Solution

The fourth proportional to 8,689.23, 13,023.75 and 3,999.39 is: 5,994.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.23 : 13,023.75 = 3,999.39 : x
  2. Step 2: Convert to fraction form
    8,689.23/13,023.75 = 3,999.39/x
  3. Step 3: Cross multiply
    8,689.23x = 13,023.75 × 3,999.39
  4. Step 4: Simplify right side
    8,689.23x = 52,087,070.51
  5. Step 5: Solve for x
    x = 52,087,070.51/8,689.23
  6. Step 6: Final answer
    x = 5,994.44

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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.