Home / 11,650.40-16,076.16-6,612.80

Finding the Fourth Proportional to 11,650.40, 16,076.16 and 6,612.80

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Solution

The fourth proportional to 11,650.40, 16,076.16 and 6,612.80 is: 9,124.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,650.40 : 16,076.16 = 6,612.80 : x
  2. Step 2: Convert to fraction form
    11,650.40/16,076.16 = 6,612.80/x
  3. Step 3: Cross multiply
    11,650.40x = 16,076.16 × 6,612.80
  4. Step 4: Simplify right side
    11,650.40x = 106,308,430.85
  5. Step 5: Solve for x
    x = 106,308,430.85/11,650.40
  6. Step 6: Final answer
    x = 9,124.87

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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.