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Finding the Fourth Proportional to 13,056.90, 18,022.63 and 8,341.18

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Solution

The fourth proportional to 13,056.90, 18,022.63 and 8,341.18 is: 11,513.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.90 : 18,022.63 = 8,341.18 : x
  2. Step 2: Convert to fraction form
    13,056.90/18,022.63 = 8,341.18/x
  3. Step 3: Cross multiply
    13,056.90x = 18,022.63 × 8,341.18
  4. Step 4: Simplify right side
    13,056.90x = 150,329,927.17
  5. Step 5: Solve for x
    x = 150,329,927.17/13,056.90
  6. Step 6: Final answer
    x = 11,513.45

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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.