Home / 16,856.51-25,289.62-5,171.45

Finding the Fourth Proportional to 16,856.51, 25,289.62 and 5,171.45

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Solution

The fourth proportional to 16,856.51, 25,289.62 and 5,171.45 is: 7,758.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,856.51 : 25,289.62 = 5,171.45 : x
  2. Step 2: Convert to fraction form
    16,856.51/25,289.62 = 5,171.45/x
  3. Step 3: Cross multiply
    16,856.51x = 25,289.62 × 5,171.45
  4. Step 4: Simplify right side
    16,856.51x = 130,783,865.97
  5. Step 5: Solve for x
    x = 130,783,865.97/16,856.51
  6. Step 6: Final answer
    x = 7,758.66

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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.