Home / 11,718.90-16,171.44-6,412.68

Finding the Fourth Proportional to 11,718.90, 16,171.44 and 6,412.68

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Solution

The fourth proportional to 11,718.90, 16,171.44 and 6,412.68 is: 8,849.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.90 : 16,171.44 = 6,412.68 : x
  2. Step 2: Convert to fraction form
    11,718.90/16,171.44 = 6,412.68/x
  3. Step 3: Cross multiply
    11,718.90x = 16,171.44 × 6,412.68
  4. Step 4: Simplify right side
    11,718.90x = 103,702,269.86
  5. Step 5: Solve for x
    x = 103,702,269.86/11,718.90
  6. Step 6: Final answer
    x = 8,849.15

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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.