Home / 7,845.30-11,759.85-5,646.42

Finding the Fourth Proportional to 7,845.30, 11,759.85 and 5,646.42

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Solution

The fourth proportional to 7,845.30, 11,759.85 and 5,646.42 is: 8,463.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.30 : 11,759.85 = 5,646.42 : x
  2. Step 2: Convert to fraction form
    7,845.30/11,759.85 = 5,646.42/x
  3. Step 3: Cross multiply
    7,845.30x = 11,759.85 × 5,646.42
  4. Step 4: Simplify right side
    7,845.30x = 66,401,052.24
  5. Step 5: Solve for x
    x = 66,401,052.24/7,845.30
  6. Step 6: Final answer
    x = 8,463.80

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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.