Home / 13,038.24-19,558.51-3,678.34

Finding the Fourth Proportional to 13,038.24, 19,558.51 and 3,678.34

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Solution

The fourth proportional to 13,038.24, 19,558.51 and 3,678.34 is: 5,517.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.24 : 19,558.51 = 3,678.34 : x
  2. Step 2: Convert to fraction form
    13,038.24/19,558.51 = 3,678.34/x
  3. Step 3: Cross multiply
    13,038.24x = 19,558.51 × 3,678.34
  4. Step 4: Simplify right side
    13,038.24x = 71,942,849.67
  5. Step 5: Solve for x
    x = 71,942,849.67/13,038.24
  6. Step 6: Final answer
    x = 5,517.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.