Home / 13,519.86-20,280.99-4,754.85

Finding the Fourth Proportional to 13,519.86, 20,280.99 and 4,754.85

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Solution

The fourth proportional to 13,519.86, 20,280.99 and 4,754.85 is: 7,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.86 : 20,280.99 = 4,754.85 : x
  2. Step 2: Convert to fraction form
    13,519.86/20,280.99 = 4,754.85/x
  3. Step 3: Cross multiply
    13,519.86x = 20,280.99 × 4,754.85
  4. Step 4: Simplify right side
    13,519.86x = 96,433,065.30
  5. Step 5: Solve for x
    x = 96,433,065.30/13,519.86
  6. Step 6: Final answer
    x = 7,132.70

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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.