Home / 13,518.42-18,638.52-10,335.66

Finding the Fourth Proportional to 13,518.42, 18,638.52 and 10,335.66

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Solution

The fourth proportional to 13,518.42, 18,638.52 and 10,335.66 is: 14,250.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.42 : 18,638.52 = 10,335.66 : x
  2. Step 2: Convert to fraction form
    13,518.42/18,638.52 = 10,335.66/x
  3. Step 3: Cross multiply
    13,518.42x = 18,638.52 × 10,335.66
  4. Step 4: Simplify right side
    13,518.42x = 192,641,405.62
  5. Step 5: Solve for x
    x = 192,641,405.62/13,518.42
  6. Step 6: Final answer
    x = 14,250.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.