Home / 13,699.48-18,912.72-9,500.44

Finding the Fourth Proportional to 13,699.48, 18,912.72 and 9,500.44

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Solution

The fourth proportional to 13,699.48, 18,912.72 and 9,500.44 is: 13,115.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.48 : 18,912.72 = 9,500.44 : x
  2. Step 2: Convert to fraction form
    13,699.48/18,912.72 = 9,500.44/x
  3. Step 3: Cross multiply
    13,699.48x = 18,912.72 × 9,500.44
  4. Step 4: Simplify right side
    13,699.48x = 179,679,161.60
  5. Step 5: Solve for x
    x = 179,679,161.60/13,699.48
  6. Step 6: Final answer
    x = 13,115.77

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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.