Home / 12,558.31-18,830.00-4,236.28

Finding the Fourth Proportional to 12,558.31, 18,830.00 and 4,236.28

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Solution

The fourth proportional to 12,558.31, 18,830.00 and 4,236.28 is: 6,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.31 : 18,830.00 = 4,236.28 : x
  2. Step 2: Convert to fraction form
    12,558.31/18,830.00 = 4,236.28/x
  3. Step 3: Cross multiply
    12,558.31x = 18,830.00 × 4,236.28
  4. Step 4: Simplify right side
    12,558.31x = 79,769,131.22
  5. Step 5: Solve for x
    x = 79,769,131.22/12,558.31
  6. Step 6: Final answer
    x = 6,351.90

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1.5x scale

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.