Home / 12,728.50-19,092.68-4,937.26

Finding the Fourth Proportional to 12,728.50, 19,092.68 and 4,937.26

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Solution

The fourth proportional to 12,728.50, 19,092.68 and 4,937.26 is: 7,405.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728.50 : 19,092.68 = 4,937.26 : x
  2. Step 2: Convert to fraction form
    12,728.50/19,092.68 = 4,937.26/x
  3. Step 3: Cross multiply
    12,728.50x = 19,092.68 × 4,937.26
  4. Step 4: Simplify right side
    12,728.50x = 94,265,525.26
  5. Step 5: Solve for x
    x = 94,265,525.26/12,728.50
  6. Step 6: Final answer
    x = 7,405.86

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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.