Home / 8,821.31-12,173.49-4,842.59

Finding the Fourth Proportional to 8,821.31, 12,173.49 and 4,842.59

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Solution

The fourth proportional to 8,821.31, 12,173.49 and 4,842.59 is: 6,682.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.31 : 12,173.49 = 4,842.59 : x
  2. Step 2: Convert to fraction form
    8,821.31/12,173.49 = 4,842.59/x
  3. Step 3: Cross multiply
    8,821.31x = 12,173.49 × 4,842.59
  4. Step 4: Simplify right side
    8,821.31x = 58,951,160.07
  5. Step 5: Solve for x
    x = 58,951,160.07/8,821.31
  6. Step 6: Final answer
    x = 6,682.82

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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.