Home / 11,157.20-16,736.00-5,312.64

Finding the Fourth Proportional to 11,157.20, 16,736.00 and 5,312.64

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Solution

The fourth proportional to 11,157.20, 16,736.00 and 5,312.64 is: 7,969.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.20 : 16,736.00 = 5,312.64 : x
  2. Step 2: Convert to fraction form
    11,157.20/16,736.00 = 5,312.64/x
  3. Step 3: Cross multiply
    11,157.20x = 16,736.00 × 5,312.64
  4. Step 4: Simplify right side
    11,157.20x = 88,912,316.48
  5. Step 5: Solve for x
    x = 88,912,316.48/11,157.20
  6. Step 6: Final answer
    x = 7,969.06

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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.