Home / 8,221.81-11,346.29-4,684.94

Finding the Fourth Proportional to 8,221.81, 11,346.29 and 4,684.94

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Solution

The fourth proportional to 8,221.81, 11,346.29 and 4,684.94 is: 6,465.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221.81 : 11,346.29 = 4,684.94 : x
  2. Step 2: Convert to fraction form
    8,221.81/11,346.29 = 4,684.94/x
  3. Step 3: Cross multiply
    8,221.81x = 11,346.29 × 4,684.94
  4. Step 4: Simplify right side
    8,221.81x = 53,156,727.95
  5. Step 5: Solve for x
    x = 53,156,727.95/8,221.81
  6. Step 6: Final answer
    x = 6,465.33

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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.