Home / 13,519.53-20,282.48-4,285.53

Finding the Fourth Proportional to 13,519.53, 20,282.48 and 4,285.53

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Solution

The fourth proportional to 13,519.53, 20,282.48 and 4,285.53 is: 6,429.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.53 : 20,282.48 = 4,285.53 : x
  2. Step 2: Convert to fraction form
    13,519.53/20,282.48 = 4,285.53/x
  3. Step 3: Cross multiply
    13,519.53x = 20,282.48 × 4,285.53
  4. Step 4: Simplify right side
    13,519.53x = 86,921,155.09
  5. Step 5: Solve for x
    x = 86,921,155.09/13,519.53
  6. Step 6: Final answer
    x = 6,429.30

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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.