Home / 18,288.38-27,427.14-7,758.28

Finding the Fourth Proportional to 18,288.38, 27,427.14 and 7,758.28

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Solution

The fourth proportional to 18,288.38, 27,427.14 and 7,758.28 is: 11,635.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288.38 : 27,427.14 = 7,758.28 : x
  2. Step 2: Convert to fraction form
    18,288.38/27,427.14 = 7,758.28/x
  3. Step 3: Cross multiply
    18,288.38x = 27,427.14 × 7,758.28
  4. Step 4: Simplify right side
    18,288.38x = 212,787,466.00
  5. Step 5: Solve for x
    x = 212,787,466.00/18,288.38
  6. Step 6: Final answer
    x = 11,635.12

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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.