Home / 11,822.79-16,315.57-6,517.79

Finding the Fourth Proportional to 11,822.79, 16,315.57 and 6,517.79

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Solution

The fourth proportional to 11,822.79, 16,315.57 and 6,517.79 is: 8,994.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,822.79 : 16,315.57 = 6,517.79 : x
  2. Step 2: Convert to fraction form
    11,822.79/16,315.57 = 6,517.79/x
  3. Step 3: Cross multiply
    11,822.79x = 16,315.57 × 6,517.79
  4. Step 4: Simplify right side
    11,822.79x = 106,341,507.93
  5. Step 5: Solve for x
    x = 106,341,507.93/11,822.79
  6. Step 6: Final answer
    x = 8,994.62

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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.