Home / 11,911.16-16,437.50-6,606.32

Finding the Fourth Proportional to 11,911.16, 16,437.50 and 6,606.32

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Solution

The fourth proportional to 11,911.16, 16,437.50 and 6,606.32 is: 9,116.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.16 : 16,437.50 = 6,606.32 : x
  2. Step 2: Convert to fraction form
    11,911.16/16,437.50 = 6,606.32/x
  3. Step 3: Cross multiply
    11,911.16x = 16,437.50 × 6,606.32
  4. Step 4: Simplify right side
    11,911.16x = 108,591,385
  5. Step 5: Solve for x
    x = 108,591,385/11,911.16
  6. Step 6: Final answer
    x = 9,116.78

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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.