Home / 14,560.25-21,840.38-4,172

Finding the Fourth Proportional to 14,560.25, 21,840.38 and 4,172

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Solution

The fourth proportional to 14,560.25, 21,840.38 and 4,172 is: 6,258

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,560.25 : 21,840.38 = 4,172 : x
  2. Step 2: Convert to fraction form
    14,560.25/21,840.38 = 4,172/x
  3. Step 3: Cross multiply
    14,560.25x = 21,840.38 × 4,172
  4. Step 4: Simplify right side
    14,560.25x = 91,118,044.50
  5. Step 5: Solve for x
    x = 91,118,044.50/14,560.25
  6. Step 6: Final answer
    x = 6,258

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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.