Home / 11,726.57-16,182.66-6,421.39

Finding the Fourth Proportional to 11,726.57, 16,182.66 and 6,421.39

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Solution

The fourth proportional to 11,726.57, 16,182.66 and 6,421.39 is: 8,861.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726.57 : 16,182.66 = 6,421.39 : x
  2. Step 2: Convert to fraction form
    11,726.57/16,182.66 = 6,421.39/x
  3. Step 3: Cross multiply
    11,726.57x = 16,182.66 × 6,421.39
  4. Step 4: Simplify right side
    11,726.57x = 103,915,171.10
  5. Step 5: Solve for x
    x = 103,915,171.10/11,726.57
  6. Step 6: Final answer
    x = 8,861.51

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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.