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Finding the Fourth Proportional to 18,113.53, 27,170.48 and 4,965.90

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Solution

The fourth proportional to 18,113.53, 27,170.48 and 4,965.90 is: 7,448.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,113.53 : 27,170.48 = 4,965.90 : x
  2. Step 2: Convert to fraction form
    18,113.53/27,170.48 = 4,965.90/x
  3. Step 3: Cross multiply
    18,113.53x = 27,170.48 × 4,965.90
  4. Step 4: Simplify right side
    18,113.53x = 134,925,725.95
  5. Step 5: Solve for x
    x = 134,925,725.95/18,113.53
  6. Step 6: Final answer
    x = 7,448.89

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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.