Home / 8,269.84-12,405.96-3,005.20

Finding the Fourth Proportional to 8,269.84, 12,405.96 and 3,005.20

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Solution

The fourth proportional to 8,269.84, 12,405.96 and 3,005.20 is: 4,508.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.84 : 12,405.96 = 3,005.20 : x
  2. Step 2: Convert to fraction form
    8,269.84/12,405.96 = 3,005.20/x
  3. Step 3: Cross multiply
    8,269.84x = 12,405.96 × 3,005.20
  4. Step 4: Simplify right side
    8,269.84x = 37,282,390.99
  5. Step 5: Solve for x
    x = 37,282,390.99/8,269.84
  6. Step 6: Final answer
    x = 4,508.24

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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.