Home / 11,078.27-16,590.98-6,388.47

Finding the Fourth Proportional to 11,078.27, 16,590.98 and 6,388.47

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Solution

The fourth proportional to 11,078.27, 16,590.98 and 6,388.47 is: 9,567.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.27 : 16,590.98 = 6,388.47 : x
  2. Step 2: Convert to fraction form
    11,078.27/16,590.98 = 6,388.47/x
  3. Step 3: Cross multiply
    11,078.27x = 16,590.98 × 6,388.47
  4. Step 4: Simplify right side
    11,078.27x = 105,990,958.04
  5. Step 5: Solve for x
    x = 105,990,958.04/11,078.27
  6. Step 6: Final answer
    x = 9,567.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.