Home / 13,105.75-19,641.10-4,777.93

Finding the Fourth Proportional to 13,105.75, 19,641.10 and 4,777.93

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Solution

The fourth proportional to 13,105.75, 19,641.10 and 4,777.93 is: 7,160.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,105.75 : 19,641.10 = 4,777.93 : x
  2. Step 2: Convert to fraction form
    13,105.75/19,641.10 = 4,777.93/x
  3. Step 3: Cross multiply
    13,105.75x = 19,641.10 × 4,777.93
  4. Step 4: Simplify right side
    13,105.75x = 93,843,800.92
  5. Step 5: Solve for x
    x = 93,843,800.92/13,105.75
  6. Step 6: Final answer
    x = 7,160.51

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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.