Home / 14,857.90-20,504.06-8,143.37

Finding the Fourth Proportional to 14,857.90, 20,504.06 and 8,143.37

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Solution

The fourth proportional to 14,857.90, 20,504.06 and 8,143.37 is: 11,237.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,857.90 : 20,504.06 = 8,143.37 : x
  2. Step 2: Convert to fraction form
    14,857.90/20,504.06 = 8,143.37/x
  3. Step 3: Cross multiply
    14,857.90x = 20,504.06 × 8,143.37
  4. Step 4: Simplify right side
    14,857.90x = 166,972,157.63
  5. Step 5: Solve for x
    x = 166,972,157.63/14,857.90
  6. Step 6: Final answer
    x = 11,237.94

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1.5x scale

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.