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Finding the Fourth Proportional to 13,410.19, 20,107.43 and 4,047.40

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Solution

The fourth proportional to 13,410.19, 20,107.43 and 4,047.40 is: 6,068.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.19 : 20,107.43 = 4,047.40 : x
  2. Step 2: Convert to fraction form
    13,410.19/20,107.43 = 4,047.40/x
  3. Step 3: Cross multiply
    13,410.19x = 20,107.43 × 4,047.40
  4. Step 4: Simplify right side
    13,410.19x = 81,382,812.18
  5. Step 5: Solve for x
    x = 81,382,812.18/13,410.19
  6. Step 6: Final answer
    x = 6,068.73

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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.