Home / 13,876.07-19,146.47-8,208

Finding the Fourth Proportional to 13,876.07, 19,146.47 and 8,208

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Solution

The fourth proportional to 13,876.07, 19,146.47 and 8,208 is: 11,325.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876.07 : 19,146.47 = 8,208 : x
  2. Step 2: Convert to fraction form
    13,876.07/19,146.47 = 8,208/x
  3. Step 3: Cross multiply
    13,876.07x = 19,146.47 × 8,208
  4. Step 4: Simplify right side
    13,876.07x = 157,154,184.72
  5. Step 5: Solve for x
    x = 157,154,184.72/13,876.07
  6. Step 6: Final answer
    x = 11,325.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.