Home / 13,009.92-19,516.80-3,776.64

Finding the Fourth Proportional to 13,009.92, 19,516.80 and 3,776.64

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Solution

The fourth proportional to 13,009.92, 19,516.80 and 3,776.64 is: 5,665.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.92 : 19,516.80 = 3,776.64 : x
  2. Step 2: Convert to fraction form
    13,009.92/19,516.80 = 3,776.64/x
  3. Step 3: Cross multiply
    13,009.92x = 19,516.80 × 3,776.64
  4. Step 4: Simplify right side
    13,009.92x = 73,707,927.55
  5. Step 5: Solve for x
    x = 73,707,927.55/13,009.92
  6. Step 6: Final answer
    x = 5,665.52

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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.