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Finding the Fourth Proportional to 18,243.63, 25,176.23 and 9,860.13

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Solution

The fourth proportional to 18,243.63, 25,176.23 and 9,860.13 is: 13,606.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.63 : 25,176.23 = 9,860.13 : x
  2. Step 2: Convert to fraction form
    18,243.63/25,176.23 = 9,860.13/x
  3. Step 3: Cross multiply
    18,243.63x = 25,176.23 × 9,860.13
  4. Step 4: Simplify right side
    18,243.63x = 248,240,900.71
  5. Step 5: Solve for x
    x = 248,240,900.71/18,243.63
  6. Step 6: Final answer
    x = 13,606.99

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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.