Home / 12,505.50-18,758.88-3,740.49

Finding the Fourth Proportional to 12,505.50, 18,758.88 and 3,740.49

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Solution

The fourth proportional to 12,505.50, 18,758.88 and 3,740.49 is: 5,610.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.50 : 18,758.88 = 3,740.49 : x
  2. Step 2: Convert to fraction form
    12,505.50/18,758.88 = 3,740.49/x
  3. Step 3: Cross multiply
    12,505.50x = 18,758.88 × 3,740.49
  4. Step 4: Simplify right side
    12,505.50x = 70,167,403.05
  5. Step 5: Solve for x
    x = 70,167,403.05/12,505.50
  6. Step 6: Final answer
    x = 5,610.92

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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.