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Finding the Fourth Proportional to 13,459.05, 18,563.04 and 11,948.20

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Solution

The fourth proportional to 13,459.05, 18,563.04 and 11,948.20 is: 16,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.05 : 18,563.04 = 11,948.20 : x
  2. Step 2: Convert to fraction form
    13,459.05/18,563.04 = 11,948.20/x
  3. Step 3: Cross multiply
    13,459.05x = 18,563.04 × 11,948.20
  4. Step 4: Simplify right side
    13,459.05x = 221,794,868.12
  5. Step 5: Solve for x
    x = 221,794,868.12/13,459.05
  6. Step 6: Final answer
    x = 16,479.24

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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.