Home / 11,505.18-15,876.56-6,469.10

Finding the Fourth Proportional to 11,505.18, 15,876.56 and 6,469.10

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Solution

The fourth proportional to 11,505.18, 15,876.56 and 6,469.10 is: 8,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,505.18 : 15,876.56 = 6,469.10 : x
  2. Step 2: Convert to fraction form
    11,505.18/15,876.56 = 6,469.10/x
  3. Step 3: Cross multiply
    11,505.18x = 15,876.56 × 6,469.10
  4. Step 4: Simplify right side
    11,505.18x = 102,706,986.33
  5. Step 5: Solve for x
    x = 102,706,986.33/11,505.18
  6. Step 6: Final answer
    x = 8,927.03

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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.