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Finding the Fourth Proportional to 18,670.48, 25,767.12 and 13,946.56

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Solution

The fourth proportional to 18,670.48, 25,767.12 and 13,946.56 is: 19,247.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.48 : 25,767.12 = 13,946.56 : x
  2. Step 2: Convert to fraction form
    18,670.48/25,767.12 = 13,946.56/x
  3. Step 3: Cross multiply
    18,670.48x = 25,767.12 × 13,946.56
  4. Step 4: Simplify right side
    18,670.48x = 359,362,685.11
  5. Step 5: Solve for x
    x = 359,362,685.11/18,670.48
  6. Step 6: Final answer
    x = 19,247.64

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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.