Home / 13,078.44-18,043.34-8,038.62

Finding the Fourth Proportional to 13,078.44, 18,043.34 and 8,038.62

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Solution

The fourth proportional to 13,078.44, 18,043.34 and 8,038.62 is: 11,090.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.44 : 18,043.34 = 8,038.62 : x
  2. Step 2: Convert to fraction form
    13,078.44/18,043.34 = 8,038.62/x
  3. Step 3: Cross multiply
    13,078.44x = 18,043.34 × 8,038.62
  4. Step 4: Simplify right side
    13,078.44x = 145,043,513.60
  5. Step 5: Solve for x
    x = 145,043,513.60/13,078.44
  6. Step 6: Final answer
    x = 11,090.28

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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.