Home / 12,656.88-18,986.16-4,336.56

Finding the Fourth Proportional to 12,656.88, 18,986.16 and 4,336.56

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Solution

The fourth proportional to 12,656.88, 18,986.16 and 4,336.56 is: 6,505.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.88 : 18,986.16 = 4,336.56 : x
  2. Step 2: Convert to fraction form
    12,656.88/18,986.16 = 4,336.56/x
  3. Step 3: Cross multiply
    12,656.88x = 18,986.16 × 4,336.56
  4. Step 4: Simplify right side
    12,656.88x = 82,334,622.01
  5. Step 5: Solve for x
    x = 82,334,622.01/12,656.88
  6. Step 6: Final answer
    x = 6,505.13

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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.