Home / 6,426-9,623.88-5,392.64

Finding the Fourth Proportional to 6,426, 9,623.88 and 5,392.64

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Solution

The fourth proportional to 6,426, 9,623.88 and 5,392.64 is: 8,076.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,426 : 9,623.88 = 5,392.64 : x
  2. Step 2: Convert to fraction form
    6,426/9,623.88 = 5,392.64/x
  3. Step 3: Cross multiply
    6,426x = 9,623.88 × 5,392.64
  4. Step 4: Simplify right side
    6,426x = 51,898,144.30
  5. Step 5: Solve for x
    x = 51,898,144.30/6,426
  6. Step 6: Final answer
    x = 8,076.28

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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.