Home / 13,087.03-18,050.43-8,302.85

Finding the Fourth Proportional to 13,087.03, 18,050.43 and 8,302.85

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Solution

The fourth proportional to 13,087.03, 18,050.43 and 8,302.85 is: 11,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.03 : 18,050.43 = 8,302.85 : x
  2. Step 2: Convert to fraction form
    13,087.03/18,050.43 = 8,302.85/x
  3. Step 3: Cross multiply
    13,087.03x = 18,050.43 × 8,302.85
  4. Step 4: Simplify right side
    13,087.03x = 149,869,974.59
  5. Step 5: Solve for x
    x = 149,869,974.59/13,087.03
  6. Step 6: Final answer
    x = 11,451.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.