Home / 13,623.15-18,802.19-11,350.91

Finding the Fourth Proportional to 13,623.15, 18,802.19 and 11,350.91

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Solution

The fourth proportional to 13,623.15, 18,802.19 and 11,350.91 is: 15,666.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.15 : 18,802.19 = 11,350.91 : x
  2. Step 2: Convert to fraction form
    13,623.15/18,802.19 = 11,350.91/x
  3. Step 3: Cross multiply
    13,623.15x = 18,802.19 × 11,350.91
  4. Step 4: Simplify right side
    13,623.15x = 213,421,815.73
  5. Step 5: Solve for x
    x = 213,421,815.73/13,623.15
  6. Step 6: Final answer
    x = 15,666.11

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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.