Home / 18,305.08-27,459.34-5,157.80

Finding the Fourth Proportional to 18,305.08, 27,459.34 and 5,157.80

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Solution

The fourth proportional to 18,305.08, 27,459.34 and 5,157.80 is: 7,737.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.08 : 27,459.34 = 5,157.80 : x
  2. Step 2: Convert to fraction form
    18,305.08/27,459.34 = 5,157.80/x
  3. Step 3: Cross multiply
    18,305.08x = 27,459.34 × 5,157.80
  4. Step 4: Simplify right side
    18,305.08x = 141,629,783.85
  5. Step 5: Solve for x
    x = 141,629,783.85/18,305.08
  6. Step 6: Final answer
    x = 7,737.18

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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.