Home / 8,205.16-12,309.52-2,659.06

Finding the Fourth Proportional to 8,205.16, 12,309.52 and 2,659.06

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Solution

The fourth proportional to 8,205.16, 12,309.52 and 2,659.06 is: 3,989.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,205.16 : 12,309.52 = 2,659.06 : x
  2. Step 2: Convert to fraction form
    8,205.16/12,309.52 = 2,659.06/x
  3. Step 3: Cross multiply
    8,205.16x = 12,309.52 × 2,659.06
  4. Step 4: Simplify right side
    8,205.16x = 32,731,752.25
  5. Step 5: Solve for x
    x = 32,731,752.25/8,205.16
  6. Step 6: Final answer
    x = 3,989.17

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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.