Home / 11,913.08-16,438.64-6,606.60

Finding the Fourth Proportional to 11,913.08, 16,438.64 and 6,606.60

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Solution

The fourth proportional to 11,913.08, 16,438.64 and 6,606.60 is: 9,116.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,913.08 : 16,438.64 = 6,606.60 : x
  2. Step 2: Convert to fraction form
    11,913.08/16,438.64 = 6,606.60/x
  3. Step 3: Cross multiply
    11,913.08x = 16,438.64 × 6,606.60
  4. Step 4: Simplify right side
    11,913.08x = 108,603,519.02
  5. Step 5: Solve for x
    x = 108,603,519.02/11,913.08
  6. Step 6: Final answer
    x = 9,116.33

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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.