Home / 13,985.31-20,950.26-9,058.39

Finding the Fourth Proportional to 13,985.31, 20,950.26 and 9,058.39

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Solution

The fourth proportional to 13,985.31, 20,950.26 and 9,058.39 is: 13,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.31 : 20,950.26 = 9,058.39 : x
  2. Step 2: Convert to fraction form
    13,985.31/20,950.26 = 9,058.39/x
  3. Step 3: Cross multiply
    13,985.31x = 20,950.26 × 9,058.39
  4. Step 4: Simplify right side
    13,985.31x = 189,775,625.68
  5. Step 5: Solve for x
    x = 189,775,625.68/13,985.31
  6. Step 6: Final answer
    x = 13,569.64

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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.