Home / 8,199.32-12,300.76-3,005.19

Finding the Fourth Proportional to 8,199.32, 12,300.76 and 3,005.19

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Solution

The fourth proportional to 8,199.32, 12,300.76 and 3,005.19 is: 4,508.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,199.32 : 12,300.76 = 3,005.19 : x
  2. Step 2: Convert to fraction form
    8,199.32/12,300.76 = 3,005.19/x
  3. Step 3: Cross multiply
    8,199.32x = 12,300.76 × 3,005.19
  4. Step 4: Simplify right side
    8,199.32x = 36,966,124.70
  5. Step 5: Solve for x
    x = 36,966,124.70/8,199.32
  6. Step 6: Final answer
    x = 4,508.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.