Home / 7,638.21-11,458.97-2,373.12

Finding the Fourth Proportional to 7,638.21, 11,458.97 and 2,373.12

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Solution

The fourth proportional to 7,638.21, 11,458.97 and 2,373.12 is: 3,560.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.21 : 11,458.97 = 2,373.12 : x
  2. Step 2: Convert to fraction form
    7,638.21/11,458.97 = 2,373.12/x
  3. Step 3: Cross multiply
    7,638.21x = 11,458.97 × 2,373.12
  4. Step 4: Simplify right side
    7,638.21x = 27,193,499.02
  5. Step 5: Solve for x
    x = 27,193,499.02/7,638.21
  6. Step 6: Final answer
    x = 3,560.19

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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.