Home / 8,106.36-12,160.89-2,558.40

Finding the Fourth Proportional to 8,106.36, 12,160.89 and 2,558.40

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Solution

The fourth proportional to 8,106.36, 12,160.89 and 2,558.40 is: 3,838.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.36 : 12,160.89 = 2,558.40 : x
  2. Step 2: Convert to fraction form
    8,106.36/12,160.89 = 2,558.40/x
  3. Step 3: Cross multiply
    8,106.36x = 12,160.89 × 2,558.40
  4. Step 4: Simplify right side
    8,106.36x = 31,112,420.98
  5. Step 5: Solve for x
    x = 31,112,420.98/8,106.36
  6. Step 6: Final answer
    x = 3,838.03

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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.