Home / 6,405.11-8,829.37-5,005.43

Finding the Fourth Proportional to 6,405.11, 8,829.37 and 5,005.43

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Solution

The fourth proportional to 6,405.11, 8,829.37 and 5,005.43 is: 6,899.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.11 : 8,829.37 = 5,005.43 : x
  2. Step 2: Convert to fraction form
    6,405.11/8,829.37 = 5,005.43/x
  3. Step 3: Cross multiply
    6,405.11x = 8,829.37 × 5,005.43
  4. Step 4: Simplify right side
    6,405.11x = 44,194,793.48
  5. Step 5: Solve for x
    x = 44,194,793.48/6,405.11
  6. Step 6: Final answer
    x = 6,899.93

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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.