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Finding the Fourth Proportional to 17,443.40, 26,165.10 and 12,559.10

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Solution

The fourth proportional to 17,443.40, 26,165.10 and 12,559.10 is: 18,838.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,443.40 : 26,165.10 = 12,559.10 : x
  2. Step 2: Convert to fraction form
    17,443.40/26,165.10 = 12,559.10/x
  3. Step 3: Cross multiply
    17,443.40x = 26,165.10 × 12,559.10
  4. Step 4: Simplify right side
    17,443.40x = 328,610,107.41
  5. Step 5: Solve for x
    x = 328,610,107.41/17,443.40
  6. Step 6: Final answer
    x = 18,838.65

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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.