Home / 11,587.85-17,381.77-4,190.58

Finding the Fourth Proportional to 11,587.85, 17,381.77 and 4,190.58

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Solution

The fourth proportional to 11,587.85, 17,381.77 and 4,190.58 is: 6,285.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,587.85 : 17,381.77 = 4,190.58 : x
  2. Step 2: Convert to fraction form
    11,587.85/17,381.77 = 4,190.58/x
  3. Step 3: Cross multiply
    11,587.85x = 17,381.77 × 4,190.58
  4. Step 4: Simplify right side
    11,587.85x = 72,839,687.25
  5. Step 5: Solve for x
    x = 72,839,687.25/11,587.85
  6. Step 6: Final answer
    x = 6,285.87

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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.