Home / 15,749.40-21,733.32-8,674.44

Finding the Fourth Proportional to 15,749.40, 21,733.32 and 8,674.44

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Solution

The fourth proportional to 15,749.40, 21,733.32 and 8,674.44 is: 11,970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,749.40 : 21,733.32 = 8,674.44 : x
  2. Step 2: Convert to fraction form
    15,749.40/21,733.32 = 8,674.44/x
  3. Step 3: Cross multiply
    15,749.40x = 21,733.32 × 8,674.44
  4. Step 4: Simplify right side
    15,749.40x = 188,524,380.34
  5. Step 5: Solve for x
    x = 188,524,380.34/15,749.40
  6. Step 6: Final answer
    x = 11,970.26

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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.