Home / 12,800.55-19,218.75-6,564.96

Finding the Fourth Proportional to 12,800.55, 19,218.75 and 6,564.96

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Solution

The fourth proportional to 12,800.55, 19,218.75 and 6,564.96 is: 9,856.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.55 : 19,218.75 = 6,564.96 : x
  2. Step 2: Convert to fraction form
    12,800.55/19,218.75 = 6,564.96/x
  3. Step 3: Cross multiply
    12,800.55x = 19,218.75 × 6,564.96
  4. Step 4: Simplify right side
    12,800.55x = 126,170,325
  5. Step 5: Solve for x
    x = 126,170,325/12,800.55
  6. Step 6: Final answer
    x = 9,856.63

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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.