Home / 13,126.28-18,114.62-8,022.62

Finding the Fourth Proportional to 13,126.28, 18,114.62 and 8,022.62

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Solution

The fourth proportional to 13,126.28, 18,114.62 and 8,022.62 is: 11,071.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.28 : 18,114.62 = 8,022.62 : x
  2. Step 2: Convert to fraction form
    13,126.28/18,114.62 = 8,022.62/x
  3. Step 3: Cross multiply
    13,126.28x = 18,114.62 × 8,022.62
  4. Step 4: Simplify right side
    13,126.28x = 145,326,717.88
  5. Step 5: Solve for x
    x = 145,326,717.88/13,126.28
  6. Step 6: Final answer
    x = 11,071.44

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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.