Home / 14,647.36-21,985.60-8,076.64

Finding the Fourth Proportional to 14,647.36, 21,985.60 and 8,076.64

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Solution

The fourth proportional to 14,647.36, 21,985.60 and 8,076.64 is: 12,122.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,647.36 : 21,985.60 = 8,076.64 : x
  2. Step 2: Convert to fraction form
    14,647.36/21,985.60 = 8,076.64/x
  3. Step 3: Cross multiply
    14,647.36x = 21,985.60 × 8,076.64
  4. Step 4: Simplify right side
    14,647.36x = 177,569,776.38
  5. Step 5: Solve for x
    x = 177,569,776.38/14,647.36
  6. Step 6: Final answer
    x = 12,122.99

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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.