Home / 13,419.62-18,519.46-7,370.14

Finding the Fourth Proportional to 13,419.62, 18,519.46 and 7,370.14

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Solution

The fourth proportional to 13,419.62, 18,519.46 and 7,370.14 is: 10,171.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419.62 : 18,519.46 = 7,370.14 : x
  2. Step 2: Convert to fraction form
    13,419.62/18,519.46 = 7,370.14/x
  3. Step 3: Cross multiply
    13,419.62x = 18,519.46 × 7,370.14
  4. Step 4: Simplify right side
    13,419.62x = 136,491,012.92
  5. Step 5: Solve for x
    x = 136,491,012.92/13,419.62
  6. Step 6: Final answer
    x = 10,171.00

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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.