Home / 18,286.56-27,429.84-5,140.26

Finding the Fourth Proportional to 18,286.56, 27,429.84 and 5,140.26

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Solution

The fourth proportional to 18,286.56, 27,429.84 and 5,140.26 is: 7,710.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.56 : 27,429.84 = 5,140.26 : x
  2. Step 2: Convert to fraction form
    18,286.56/27,429.84 = 5,140.26/x
  3. Step 3: Cross multiply
    18,286.56x = 27,429.84 × 5,140.26
  4. Step 4: Simplify right side
    18,286.56x = 140,996,509.36
  5. Step 5: Solve for x
    x = 140,996,509.36/18,286.56
  6. Step 6: Final answer
    x = 7,710.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.