Home / 6,342.09-9,513.55-2,123.68

Finding the Fourth Proportional to 6,342.09, 9,513.55 and 2,123.68

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Solution

The fourth proportional to 6,342.09, 9,513.55 and 2,123.68 is: 3,185.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,342.09 : 9,513.55 = 2,123.68 : x
  2. Step 2: Convert to fraction form
    6,342.09/9,513.55 = 2,123.68/x
  3. Step 3: Cross multiply
    6,342.09x = 9,513.55 × 2,123.68
  4. Step 4: Simplify right side
    6,342.09x = 20,203,735.86
  5. Step 5: Solve for x
    x = 20,203,735.86/6,342.09
  6. Step 6: Final answer
    x = 3,185.66

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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.