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Finding the Fourth Proportional to 13,142.01, 19,713.03 and 3,281.28

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Solution

The fourth proportional to 13,142.01, 19,713.03 and 3,281.28 is: 4,921.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,142.01 : 19,713.03 = 3,281.28 : x
  2. Step 2: Convert to fraction form
    13,142.01/19,713.03 = 3,281.28/x
  3. Step 3: Cross multiply
    13,142.01x = 19,713.03 × 3,281.28
  4. Step 4: Simplify right side
    13,142.01x = 64,683,971.08
  5. Step 5: Solve for x
    x = 64,683,971.08/13,142.01
  6. Step 6: Final answer
    x = 4,921.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.