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Finding the Fourth Proportional to 18,773.72, 28,160.04 and 4,733.72

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Solution

The fourth proportional to 18,773.72, 28,160.04 and 4,733.72 is: 7,100.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,773.72 : 28,160.04 = 4,733.72 : x
  2. Step 2: Convert to fraction form
    18,773.72/28,160.04 = 4,733.72/x
  3. Step 3: Cross multiply
    18,773.72x = 28,160.04 × 4,733.72
  4. Step 4: Simplify right side
    18,773.72x = 133,301,744.55
  5. Step 5: Solve for x
    x = 133,301,744.55/18,773.72
  6. Step 6: Final answer
    x = 7,100.44

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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.