Home / 8,221.92-11,346.52-4,685.06

Finding the Fourth Proportional to 8,221.92, 11,346.52 and 4,685.06

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Solution

The fourth proportional to 8,221.92, 11,346.52 and 4,685.06 is: 6,465.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221.92 : 11,346.52 = 4,685.06 : x
  2. Step 2: Convert to fraction form
    8,221.92/11,346.52 = 4,685.06/x
  3. Step 3: Cross multiply
    8,221.92x = 11,346.52 × 4,685.06
  4. Step 4: Simplify right side
    8,221.92x = 53,159,126.99
  5. Step 5: Solve for x
    x = 53,159,126.99/8,221.92
  6. Step 6: Final answer
    x = 6,465.54

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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.