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Finding the Fourth Proportional to 13,567.40, 20,351.10 and 11,263.40

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Solution

The fourth proportional to 13,567.40, 20,351.10 and 11,263.40 is: 16,895.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.40 : 20,351.10 = 11,263.40 : x
  2. Step 2: Convert to fraction form
    13,567.40/20,351.10 = 11,263.40/x
  3. Step 3: Cross multiply
    13,567.40x = 20,351.10 × 11,263.40
  4. Step 4: Simplify right side
    13,567.40x = 229,222,579.74
  5. Step 5: Solve for x
    x = 229,222,579.74/13,567.40
  6. Step 6: Final answer
    x = 16,895.10

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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.