Home / 8,690.09-11,992.25-4,711.16

Finding the Fourth Proportional to 8,690.09, 11,992.25 and 4,711.16

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Solution

The fourth proportional to 8,690.09, 11,992.25 and 4,711.16 is: 6,501.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.09 : 11,992.25 = 4,711.16 : x
  2. Step 2: Convert to fraction form
    8,690.09/11,992.25 = 4,711.16/x
  3. Step 3: Cross multiply
    8,690.09x = 11,992.25 × 4,711.16
  4. Step 4: Simplify right side
    8,690.09x = 56,497,450.27
  5. Step 5: Solve for x
    x = 56,497,450.27/8,690.09
  6. Step 6: Final answer
    x = 6,501.37

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Double scale
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Similar ratio
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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.