Home / 16,678.45-25,020.72-7,913.29

Finding the Fourth Proportional to 16,678.45, 25,020.72 and 7,913.29

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Solution

The fourth proportional to 16,678.45, 25,020.72 and 7,913.29 is: 11,871.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,678.45 : 25,020.72 = 7,913.29 : x
  2. Step 2: Convert to fraction form
    16,678.45/25,020.72 = 7,913.29/x
  3. Step 3: Cross multiply
    16,678.45x = 25,020.72 × 7,913.29
  4. Step 4: Simplify right side
    16,678.45x = 197,996,213.37
  5. Step 5: Solve for x
    x = 197,996,213.37/16,678.45
  6. Step 6: Final answer
    x = 11,871.38

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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.