Home / 13,152.08-19,731.36-12,072.08

Finding the Fourth Proportional to 13,152.08, 19,731.36 and 12,072.08

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Solution

The fourth proportional to 13,152.08, 19,731.36 and 12,072.08 is: 18,111.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.08 : 19,731.36 = 12,072.08 : x
  2. Step 2: Convert to fraction form
    13,152.08/19,731.36 = 12,072.08/x
  3. Step 3: Cross multiply
    13,152.08x = 19,731.36 × 12,072.08
  4. Step 4: Simplify right side
    13,152.08x = 238,198,556.43
  5. Step 5: Solve for x
    x = 238,198,556.43/13,152.08
  6. Step 6: Final answer
    x = 18,111.09

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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.