Home / 8,690.27-11,992.56-4,711.34

Finding the Fourth Proportional to 8,690.27, 11,992.56 and 4,711.34

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Solution

The fourth proportional to 8,690.27, 11,992.56 and 4,711.34 is: 6,501.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.27 : 11,992.56 = 4,711.34 : x
  2. Step 2: Convert to fraction form
    8,690.27/11,992.56 = 4,711.34/x
  3. Step 3: Cross multiply
    8,690.27x = 11,992.56 × 4,711.34
  4. Step 4: Simplify right side
    8,690.27x = 56,501,039.94
  5. Step 5: Solve for x
    x = 56,501,039.94/8,690.27
  6. Step 6: Final answer
    x = 6,501.65

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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.