Home / 14,720.55-20,307.22-8,747.99

Finding the Fourth Proportional to 14,720.55, 20,307.22 and 8,747.99

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Solution

The fourth proportional to 14,720.55, 20,307.22 and 8,747.99 is: 12,067.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,720.55 : 20,307.22 = 8,747.99 : x
  2. Step 2: Convert to fraction form
    14,720.55/20,307.22 = 8,747.99/x
  3. Step 3: Cross multiply
    14,720.55x = 20,307.22 × 8,747.99
  4. Step 4: Simplify right side
    14,720.55x = 177,647,357.49
  5. Step 5: Solve for x
    x = 177,647,357.49/14,720.55
  6. Step 6: Final answer
    x = 12,067.98

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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.