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Finding the Fourth Proportional to 11,008.30, 15,450.50 and 11,008.30

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Solution

The fourth proportional to 11,008.30, 15,450.50 and 11,008.30 is: 15,450.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,008.30 : 15,450.50 = 11,008.30 : x
  2. Step 2: Convert to fraction form
    11,008.30/15,450.50 = 11,008.30/x
  3. Step 3: Cross multiply
    11,008.30x = 15,450.50 × 11,008.30
  4. Step 4: Simplify right side
    11,008.30x = 170,083,739.15
  5. Step 5: Solve for x
    x = 170,083,739.15/11,008.30
  6. Step 6: Final answer
    x = 15,450.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.