Home / 12,751.72-19,127.46-3,992.32

Finding the Fourth Proportional to 12,751.72, 19,127.46 and 3,992.32

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Solution

The fourth proportional to 12,751.72, 19,127.46 and 3,992.32 is: 5,988.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,751.72 : 19,127.46 = 3,992.32 : x
  2. Step 2: Convert to fraction form
    12,751.72/19,127.46 = 3,992.32/x
  3. Step 3: Cross multiply
    12,751.72x = 19,127.46 × 3,992.32
  4. Step 4: Simplify right side
    12,751.72x = 76,362,941.11
  5. Step 5: Solve for x
    x = 76,362,941.11/12,751.72
  6. Step 6: Final answer
    x = 5,988.44

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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.