Home / 8,106.26-12,160.40-2,558.79

Finding the Fourth Proportional to 8,106.26, 12,160.40 and 2,558.79

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Solution

The fourth proportional to 8,106.26, 12,160.40 and 2,558.79 is: 3,838.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.26 : 12,160.40 = 2,558.79 : x
  2. Step 2: Convert to fraction form
    8,106.26/12,160.40 = 2,558.79/x
  3. Step 3: Cross multiply
    8,106.26x = 12,160.40 × 2,558.79
  4. Step 4: Simplify right side
    8,106.26x = 31,115,897.12
  5. Step 5: Solve for x
    x = 31,115,897.12/8,106.26
  6. Step 6: Final answer
    x = 3,838.50

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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.