Home / 8,259.15-12,389.13-3,328.12

Finding the Fourth Proportional to 8,259.15, 12,389.13 and 3,328.12

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Solution

The fourth proportional to 8,259.15, 12,389.13 and 3,328.12 is: 4,992.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,259.15 : 12,389.13 = 3,328.12 : x
  2. Step 2: Convert to fraction form
    8,259.15/12,389.13 = 3,328.12/x
  3. Step 3: Cross multiply
    8,259.15x = 12,389.13 × 3,328.12
  4. Step 4: Simplify right side
    8,259.15x = 41,232,511.34
  5. Step 5: Solve for x
    x = 41,232,511.34/8,259.15
  6. Step 6: Final answer
    x = 4,992.34

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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.