Home / 13,120.56-19,669.08-4,794.72

Finding the Fourth Proportional to 13,120.56, 19,669.08 and 4,794.72

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Solution

The fourth proportional to 13,120.56, 19,669.08 and 4,794.72 is: 7,187.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.56 : 19,669.08 = 4,794.72 : x
  2. Step 2: Convert to fraction form
    13,120.56/19,669.08 = 4,794.72/x
  3. Step 3: Cross multiply
    13,120.56x = 19,669.08 × 4,794.72
  4. Step 4: Simplify right side
    13,120.56x = 94,307,731.26
  5. Step 5: Solve for x
    x = 94,307,731.26/13,120.56
  6. Step 6: Final answer
    x = 7,187.78

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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.