Home / 18,305.10-27,458.28-5,157.12

Finding the Fourth Proportional to 18,305.10, 27,458.28 and 5,157.12

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Solution

The fourth proportional to 18,305.10, 27,458.28 and 5,157.12 is: 7,735.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.10 : 27,458.28 = 5,157.12 : x
  2. Step 2: Convert to fraction form
    18,305.10/27,458.28 = 5,157.12/x
  3. Step 3: Cross multiply
    18,305.10x = 27,458.28 × 5,157.12
  4. Step 4: Simplify right side
    18,305.10x = 141,605,644.95
  5. Step 5: Solve for x
    x = 141,605,644.95/18,305.10
  6. Step 6: Final answer
    x = 7,735.86

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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.