Home / 13,664.64-20,495.34-4,304.28

Finding the Fourth Proportional to 13,664.64, 20,495.34 and 4,304.28

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Solution

The fourth proportional to 13,664.64, 20,495.34 and 4,304.28 is: 6,455.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.64 : 20,495.34 = 4,304.28 : x
  2. Step 2: Convert to fraction form
    13,664.64/20,495.34 = 4,304.28/x
  3. Step 3: Cross multiply
    13,664.64x = 20,495.34 × 4,304.28
  4. Step 4: Simplify right side
    13,664.64x = 88,217,682.06
  5. Step 5: Solve for x
    x = 88,217,682.06/13,664.64
  6. Step 6: Final answer
    x = 6,455.91

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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.