Home / 15,749.12-21,733.92-8,675.54

Finding the Fourth Proportional to 15,749.12, 21,733.92 and 8,675.54

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Solution

The fourth proportional to 15,749.12, 21,733.92 and 8,675.54 is: 11,972.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,749.12 : 21,733.92 = 8,675.54 : x
  2. Step 2: Convert to fraction form
    15,749.12/21,733.92 = 8,675.54/x
  3. Step 3: Cross multiply
    15,749.12x = 21,733.92 × 8,675.54
  4. Step 4: Simplify right side
    15,749.12x = 188,553,492.32
  5. Step 5: Solve for x
    x = 188,553,492.32/15,749.12
  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.