Home / 11,924.40-16,456.04-6,619.60

Finding the Fourth Proportional to 11,924.40, 16,456.04 and 6,619.60

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Solution

The fourth proportional to 11,924.40, 16,456.04 and 6,619.60 is: 9,135.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,924.40 : 16,456.04 = 6,619.60 : x
  2. Step 2: Convert to fraction form
    11,924.40/16,456.04 = 6,619.60/x
  3. Step 3: Cross multiply
    11,924.40x = 16,456.04 × 6,619.60
  4. Step 4: Simplify right side
    11,924.40x = 108,932,402.38
  5. Step 5: Solve for x
    x = 108,932,402.38/11,924.40
  6. Step 6: Final answer
    x = 9,135.25

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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.