Home / 11,964.40-16,493.75-8,416.60

Finding the Fourth Proportional to 11,964.40, 16,493.75 and 8,416.60

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Solution

The fourth proportional to 11,964.40, 16,493.75 and 8,416.60 is: 11,602.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,964.40 : 16,493.75 = 8,416.60 : x
  2. Step 2: Convert to fraction form
    11,964.40/16,493.75 = 8,416.60/x
  3. Step 3: Cross multiply
    11,964.40x = 16,493.75 × 8,416.60
  4. Step 4: Simplify right side
    11,964.40x = 138,821,171.70
  5. Step 5: Solve for x
    x = 138,821,171.70/11,964.40
  6. Step 6: Final answer
    x = 11,602.86

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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.