Home / 13,644.18-18,829.44-8,268.36

Finding the Fourth Proportional to 13,644.18, 18,829.44 and 8,268.36

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Solution

The fourth proportional to 13,644.18, 18,829.44 and 8,268.36 is: 11,410.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.18 : 18,829.44 = 8,268.36 : x
  2. Step 2: Convert to fraction form
    13,644.18/18,829.44 = 8,268.36/x
  3. Step 3: Cross multiply
    13,644.18x = 18,829.44 × 8,268.36
  4. Step 4: Simplify right side
    13,644.18x = 155,688,588.52
  5. Step 5: Solve for x
    x = 155,688,588.52/13,644.18
  6. Step 6: Final answer
    x = 11,410.62

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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.