Home / 8,159.23-12,239.66-2,611.18

Finding the Fourth Proportional to 8,159.23, 12,239.66 and 2,611.18

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Solution

The fourth proportional to 8,159.23, 12,239.66 and 2,611.18 is: 3,917.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159.23 : 12,239.66 = 2,611.18 : x
  2. Step 2: Convert to fraction form
    8,159.23/12,239.66 = 2,611.18/x
  3. Step 3: Cross multiply
    8,159.23x = 12,239.66 × 2,611.18
  4. Step 4: Simplify right side
    8,159.23x = 31,959,955.40
  5. Step 5: Solve for x
    x = 31,959,955.40/8,159.23
  6. Step 6: Final answer
    x = 3,917.03

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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.