Home / 8,104.09-12,156.41-2,557.50

Finding the Fourth Proportional to 8,104.09, 12,156.41 and 2,557.50

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Solution

The fourth proportional to 8,104.09, 12,156.41 and 2,557.50 is: 3,836.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.09 : 12,156.41 = 2,557.50 : x
  2. Step 2: Convert to fraction form
    8,104.09/12,156.41 = 2,557.50/x
  3. Step 3: Cross multiply
    8,104.09x = 12,156.41 × 2,557.50
  4. Step 4: Simplify right side
    8,104.09x = 31,090,018.58
  5. Step 5: Solve for x
    x = 31,090,018.58/8,104.09
  6. Step 6: Final answer
    x = 3,836.34

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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.