Home / 11,911.64-16,438.04-6,606.32

Finding the Fourth Proportional to 11,911.64, 16,438.04 and 6,606.32

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Solution

The fourth proportional to 11,911.64, 16,438.04 and 6,606.32 is: 9,116.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.64 : 16,438.04 = 6,606.32 : x
  2. Step 2: Convert to fraction form
    11,911.64/16,438.04 = 6,606.32/x
  3. Step 3: Cross multiply
    11,911.64x = 16,438.04 × 6,606.32
  4. Step 4: Simplify right side
    11,911.64x = 108,594,952.41
  5. Step 5: Solve for x
    x = 108,594,952.41/11,911.64
  6. Step 6: Final answer
    x = 9,116.71

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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.