Home / 12,890.12-19,333.26-4,124.12

Finding the Fourth Proportional to 12,890.12, 19,333.26 and 4,124.12

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Solution

The fourth proportional to 12,890.12, 19,333.26 and 4,124.12 is: 6,185.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890.12 : 19,333.26 = 4,124.12 : x
  2. Step 2: Convert to fraction form
    12,890.12/19,333.26 = 4,124.12/x
  3. Step 3: Cross multiply
    12,890.12x = 19,333.26 × 4,124.12
  4. Step 4: Simplify right side
    12,890.12x = 79,732,684.23
  5. Step 5: Solve for x
    x = 79,732,684.23/12,890.12
  6. Step 6: Final answer
    x = 6,185.57

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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.