Home / 12,455.82-18,684.54-4,136.40

Finding the Fourth Proportional to 12,455.82, 18,684.54 and 4,136.40

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Solution

The fourth proportional to 12,455.82, 18,684.54 and 4,136.40 is: 6,204.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.82 : 18,684.54 = 4,136.40 : x
  2. Step 2: Convert to fraction form
    12,455.82/18,684.54 = 4,136.40/x
  3. Step 3: Cross multiply
    12,455.82x = 18,684.54 × 4,136.40
  4. Step 4: Simplify right side
    12,455.82x = 77,286,731.26
  5. Step 5: Solve for x
    x = 77,286,731.26/12,455.82
  6. Step 6: Final answer
    x = 6,204.87

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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.