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Finding the Fourth Proportional to 18,199.28, 25,114.74 and 10,240.88

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Solution

The fourth proportional to 18,199.28, 25,114.74 and 10,240.88 is: 14,132.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,199.28 : 25,114.74 = 10,240.88 : x
  2. Step 2: Convert to fraction form
    18,199.28/25,114.74 = 10,240.88/x
  3. Step 3: Cross multiply
    18,199.28x = 25,114.74 × 10,240.88
  4. Step 4: Simplify right side
    18,199.28x = 257,197,038.57
  5. Step 5: Solve for x
    x = 257,197,038.57/18,199.28
  6. Step 6: Final answer
    x = 14,132.26

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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.