Home / 15,749.45-21,733.94-8,675.72

Finding the Fourth Proportional to 15,749.45, 21,733.94 and 8,675.72

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Solution

The fourth proportional to 15,749.45, 21,733.94 and 8,675.72 is: 11,972.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,749.45 : 21,733.94 = 8,675.72 : x
  2. Step 2: Convert to fraction form
    15,749.45/21,733.94 = 8,675.72/x
  3. Step 3: Cross multiply
    15,749.45x = 21,733.94 × 8,675.72
  4. Step 4: Simplify right side
    15,749.45x = 188,557,425.89
  5. Step 5: Solve for x
    x = 188,557,425.89/15,749.45
  6. Step 6: Final answer
    x = 11,972.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.