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Finding the Fourth Proportional to 18,492.57, 25,519.75 and 10,109.07

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Solution

The fourth proportional to 18,492.57, 25,519.75 and 10,109.07 is: 13,950.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.57 : 25,519.75 = 10,109.07 : x
  2. Step 2: Convert to fraction form
    18,492.57/25,519.75 = 10,109.07/x
  3. Step 3: Cross multiply
    18,492.57x = 25,519.75 × 10,109.07
  4. Step 4: Simplify right side
    18,492.57x = 257,980,939.13
  5. Step 5: Solve for x
    x = 257,980,939.13/18,492.57
  6. Step 6: Final answer
    x = 13,950.52

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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.