Home / 11,726.48-16,182.90-6,421.79

Finding the Fourth Proportional to 11,726.48, 16,182.90 and 6,421.79

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Solution

The fourth proportional to 11,726.48, 16,182.90 and 6,421.79 is: 8,862.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726.48 : 16,182.90 = 6,421.79 : x
  2. Step 2: Convert to fraction form
    11,726.48/16,182.90 = 6,421.79/x
  3. Step 3: Cross multiply
    11,726.48x = 16,182.90 × 6,421.79
  4. Step 4: Simplify right side
    11,726.48x = 103,923,104.48
  5. Step 5: Solve for x
    x = 103,923,104.48/11,726.48
  6. Step 6: Final answer
    x = 8,862.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.