Home / 12,588.96-18,879.30-4,266.84

Finding the Fourth Proportional to 12,588.96, 18,879.30 and 4,266.84

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Solution

The fourth proportional to 12,588.96, 18,879.30 and 4,266.84 is: 6,398.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.96 : 18,879.30 = 4,266.84 : x
  2. Step 2: Convert to fraction form
    12,588.96/18,879.30 = 4,266.84/x
  3. Step 3: Cross multiply
    12,588.96x = 18,879.30 × 4,266.84
  4. Step 4: Simplify right side
    12,588.96x = 80,554,952.41
  5. Step 5: Solve for x
    x = 80,554,952.41/12,588.96
  6. Step 6: Final answer
    x = 6,398.86

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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.