Home / 11,911.37-16,438.32-6,606.05

Finding the Fourth Proportional to 11,911.37, 16,438.32 and 6,606.05

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Solution

The fourth proportional to 11,911.37, 16,438.32 and 6,606.05 is: 9,116.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.37 : 16,438.32 = 6,606.05 : x
  2. Step 2: Convert to fraction form
    11,911.37/16,438.32 = 6,606.05/x
  3. Step 3: Cross multiply
    11,911.37x = 16,438.32 × 6,606.05
  4. Step 4: Simplify right side
    11,911.37x = 108,592,281.64
  5. Step 5: Solve for x
    x = 108,592,281.64/11,911.37
  6. Step 6: Final answer
    x = 9,116.69

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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.