Home / 11,821.83-16,312.92-6,784.85

Finding the Fourth Proportional to 11,821.83, 16,312.92 and 6,784.85

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Solution

The fourth proportional to 11,821.83, 16,312.92 and 6,784.85 is: 9,362.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.83 : 16,312.92 = 6,784.85 : x
  2. Step 2: Convert to fraction form
    11,821.83/16,312.92 = 6,784.85/x
  3. Step 3: Cross multiply
    11,821.83x = 16,312.92 × 6,784.85
  4. Step 4: Simplify right side
    11,821.83x = 110,680,633.70
  5. Step 5: Solve for x
    x = 110,680,633.70/11,821.83
  6. Step 6: Final answer
    x = 9,362.39

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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.