Home / 8,324.81-11,486.86-4,921.35

Finding the Fourth Proportional to 8,324.81, 11,486.86 and 4,921.35

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Solution

The fourth proportional to 8,324.81, 11,486.86 and 4,921.35 is: 6,790.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,324.81 : 11,486.86 = 4,921.35 : x
  2. Step 2: Convert to fraction form
    8,324.81/11,486.86 = 4,921.35/x
  3. Step 3: Cross multiply
    8,324.81x = 11,486.86 × 4,921.35
  4. Step 4: Simplify right side
    8,324.81x = 56,530,858.46
  5. Step 5: Solve for x
    x = 56,530,858.46/8,324.81
  6. Step 6: Final answer
    x = 6,790.65

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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.