Home / 12,803.79-19,273.64-9,131.43

Finding the Fourth Proportional to 12,803.79, 19,273.64 and 9,131.43

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Solution

The fourth proportional to 12,803.79, 19,273.64 and 9,131.43 is: 13,745.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,803.79 : 19,273.64 = 9,131.43 : x
  2. Step 2: Convert to fraction form
    12,803.79/19,273.64 = 9,131.43/x
  3. Step 3: Cross multiply
    12,803.79x = 19,273.64 × 9,131.43
  4. Step 4: Simplify right side
    12,803.79x = 175,995,848.85
  5. Step 5: Solve for x
    x = 175,995,848.85/12,803.79
  6. Step 6: Final answer
    x = 13,745.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.