Home / 16,890.78-25,308.30-5,791.45

Finding the Fourth Proportional to 16,890.78, 25,308.30 and 5,791.45

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Solution

The fourth proportional to 16,890.78, 25,308.30 and 5,791.45 is: 8,677.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.78 : 25,308.30 = 5,791.45 : x
  2. Step 2: Convert to fraction form
    16,890.78/25,308.30 = 5,791.45/x
  3. Step 3: Cross multiply
    16,890.78x = 25,308.30 × 5,791.45
  4. Step 4: Simplify right side
    16,890.78x = 146,571,727.36
  5. Step 5: Solve for x
    x = 146,571,727.36/16,890.78
  6. Step 6: Final answer
    x = 8,677.62

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1.5x scale

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.