Home / 18,748.53-25,878.11-11,670.75

Finding the Fourth Proportional to 18,748.53, 25,878.11 and 11,670.75

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Solution

The fourth proportional to 18,748.53, 25,878.11 and 11,670.75 is: 16,108.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.53 : 25,878.11 = 11,670.75 : x
  2. Step 2: Convert to fraction form
    18,748.53/25,878.11 = 11,670.75/x
  3. Step 3: Cross multiply
    18,748.53x = 25,878.11 × 11,670.75
  4. Step 4: Simplify right side
    18,748.53x = 302,016,893.93
  5. Step 5: Solve for x
    x = 302,016,893.93/18,748.53
  6. Step 6: Final answer
    x = 16,108.83

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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.