Home / 11,749.60-16,215.30-7,763.80

Finding the Fourth Proportional to 11,749.60, 16,215.30 and 7,763.80

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Solution

The fourth proportional to 11,749.60, 16,215.30 and 7,763.80 is: 10,714.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,749.60 : 16,215.30 = 7,763.80 : x
  2. Step 2: Convert to fraction form
    11,749.60/16,215.30 = 7,763.80/x
  3. Step 3: Cross multiply
    11,749.60x = 16,215.30 × 7,763.80
  4. Step 4: Simplify right side
    11,749.60x = 125,892,346.14
  5. Step 5: Solve for x
    x = 125,892,346.14/11,749.60
  6. Step 6: Final answer
    x = 10,714.61

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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.