Home / 11,917.20-16,445.73-6,612.01

Finding the Fourth Proportional to 11,917.20, 16,445.73 and 6,612.01

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Solution

The fourth proportional to 11,917.20, 16,445.73 and 6,612.01 is: 9,124.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.20 : 16,445.73 = 6,612.01 : x
  2. Step 2: Convert to fraction form
    11,917.20/16,445.73 = 6,612.01/x
  3. Step 3: Cross multiply
    11,917.20x = 16,445.73 × 6,612.01
  4. Step 4: Simplify right side
    11,917.20x = 108,739,331.22
  5. Step 5: Solve for x
    x = 108,739,331.22/11,917.20
  6. Step 6: Final answer
    x = 9,124.57

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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.