Home / 8,489.15-11,714.79-4,712.30

Finding the Fourth Proportional to 8,489.15, 11,714.79 and 4,712.30

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Solution

The fourth proportional to 8,489.15, 11,714.79 and 4,712.30 is: 6,502.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489.15 : 11,714.79 = 4,712.30 : x
  2. Step 2: Convert to fraction form
    8,489.15/11,714.79 = 4,712.30/x
  3. Step 3: Cross multiply
    8,489.15x = 11,714.79 × 4,712.30
  4. Step 4: Simplify right side
    8,489.15x = 55,203,607.94
  5. Step 5: Solve for x
    x = 55,203,607.94/8,489.15
  6. Step 6: Final answer
    x = 6,502.84

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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.