Home / 14,962.88-20,647-8,589.12

Finding the Fourth Proportional to 14,962.88, 20,647 and 8,589.12

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Solution

The fourth proportional to 14,962.88, 20,647 and 8,589.12 is: 11,851.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,962.88 : 20,647 = 8,589.12 : x
  2. Step 2: Convert to fraction form
    14,962.88/20,647 = 8,589.12/x
  3. Step 3: Cross multiply
    14,962.88x = 20,647 × 8,589.12
  4. Step 4: Simplify right side
    14,962.88x = 177,339,560.64
  5. Step 5: Solve for x
    x = 177,339,560.64/14,962.88
  6. Step 6: Final answer
    x = 11,851.97

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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.