Home / 8,021.28-11,068.80-4,663.85

Finding the Fourth Proportional to 8,021.28, 11,068.80 and 4,663.85

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Solution

The fourth proportional to 8,021.28, 11,068.80 and 4,663.85 is: 6,435.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.28 : 11,068.80 = 4,663.85 : x
  2. Step 2: Convert to fraction form
    8,021.28/11,068.80 = 4,663.85/x
  3. Step 3: Cross multiply
    8,021.28x = 11,068.80 × 4,663.85
  4. Step 4: Simplify right side
    8,021.28x = 51,623,269.67
  5. Step 5: Solve for x
    x = 51,623,269.67/8,021.28
  6. Step 6: Final answer
    x = 6,435.79

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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.