Home / 13,453.53-20,163.66-4,678.21

Finding the Fourth Proportional to 13,453.53, 20,163.66 and 4,678.21

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Solution

The fourth proportional to 13,453.53, 20,163.66 and 4,678.21 is: 7,011.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.53 : 20,163.66 = 4,678.21 : x
  2. Step 2: Convert to fraction form
    13,453.53/20,163.66 = 4,678.21/x
  3. Step 3: Cross multiply
    13,453.53x = 20,163.66 × 4,678.21
  4. Step 4: Simplify right side
    13,453.53x = 94,329,835.85
  5. Step 5: Solve for x
    x = 94,329,835.85/13,453.53
  6. Step 6: Final answer
    x = 7,011.53

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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.