Home / 13,105.65-19,557.78-11,704.35

Finding the Fourth Proportional to 13,105.65, 19,557.78 and 11,704.35

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Solution

The fourth proportional to 13,105.65, 19,557.78 and 11,704.35 is: 17,466.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,105.65 : 19,557.78 = 11,704.35 : x
  2. Step 2: Convert to fraction form
    13,105.65/19,557.78 = 11,704.35/x
  3. Step 3: Cross multiply
    13,105.65x = 19,557.78 × 11,704.35
  4. Step 4: Simplify right side
    13,105.65x = 228,911,102.34
  5. Step 5: Solve for x
    x = 228,911,102.34/13,105.65
  6. Step 6: Final answer
    x = 17,466.60

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.