Home / 11,820.36-16,311.48-6,514.20

Finding the Fourth Proportional to 11,820.36, 16,311.48 and 6,514.20

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Solution

The fourth proportional to 11,820.36, 16,311.48 and 6,514.20 is: 8,989.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.36 : 16,311.48 = 6,514.20 : x
  2. Step 2: Convert to fraction form
    11,820.36/16,311.48 = 6,514.20/x
  3. Step 3: Cross multiply
    11,820.36x = 16,311.48 × 6,514.20
  4. Step 4: Simplify right side
    11,820.36x = 106,256,243.02
  5. Step 5: Solve for x
    x = 106,256,243.02/11,820.36
  6. Step 6: Final answer
    x = 8,989.26

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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.