Home / 13,519.50-20,280.17-4,158.94

Finding the Fourth Proportional to 13,519.50, 20,280.17 and 4,158.94

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Solution

The fourth proportional to 13,519.50, 20,280.17 and 4,158.94 is: 6,238.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.50 : 20,280.17 = 4,158.94 : x
  2. Step 2: Convert to fraction form
    13,519.50/20,280.17 = 4,158.94/x
  3. Step 3: Cross multiply
    13,519.50x = 20,280.17 × 4,158.94
  4. Step 4: Simplify right side
    13,519.50x = 84,344,010.22
  5. Step 5: Solve for x
    x = 84,344,010.22/13,519.50
  6. Step 6: Final answer
    x = 6,238.69

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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.