Home / 11,352.10-17,064.60-8,087.80

Finding the Fourth Proportional to 11,352.10, 17,064.60 and 8,087.80

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Solution

The fourth proportional to 11,352.10, 17,064.60 and 8,087.80 is: 12,157.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,352.10 : 17,064.60 = 8,087.80 : x
  2. Step 2: Convert to fraction form
    11,352.10/17,064.60 = 8,087.80/x
  3. Step 3: Cross multiply
    11,352.10x = 17,064.60 × 8,087.80
  4. Step 4: Simplify right side
    11,352.10x = 138,015,071.88
  5. Step 5: Solve for x
    x = 138,015,071.88/11,352.10
  6. Step 6: Final answer
    x = 12,157.67

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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.