Home / 8,821.17-12,173.29-4,842.72

Finding the Fourth Proportional to 8,821.17, 12,173.29 and 4,842.72

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Solution

The fourth proportional to 8,821.17, 12,173.29 and 4,842.72 is: 6,682.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.17 : 12,173.29 = 4,842.72 : x
  2. Step 2: Convert to fraction form
    8,821.17/12,173.29 = 4,842.72/x
  3. Step 3: Cross multiply
    8,821.17x = 12,173.29 × 4,842.72
  4. Step 4: Simplify right side
    8,821.17x = 58,951,822.84
  5. Step 5: Solve for x
    x = 58,951,822.84/8,821.17
  6. Step 6: Final answer
    x = 6,682.99

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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.