Home / 13,078.26-18,051.66-8,043.30

Finding the Fourth Proportional to 13,078.26, 18,051.66 and 8,043.30

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Solution

The fourth proportional to 13,078.26, 18,051.66 and 8,043.30 is: 11,102.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.26 : 18,051.66 = 8,043.30 : x
  2. Step 2: Convert to fraction form
    13,078.26/18,051.66 = 8,043.30/x
  3. Step 3: Cross multiply
    13,078.26x = 18,051.66 × 8,043.30
  4. Step 4: Simplify right side
    13,078.26x = 145,194,916.88
  5. Step 5: Solve for x
    x = 145,194,916.88/13,078.26
  6. Step 6: Final answer
    x = 11,102.01

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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.