Home / 11,726.10-16,180.29-6,688.98

Finding the Fourth Proportional to 11,726.10, 16,180.29 and 6,688.98

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Solution

The fourth proportional to 11,726.10, 16,180.29 and 6,688.98 is: 9,229.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726.10 : 16,180.29 = 6,688.98 : x
  2. Step 2: Convert to fraction form
    11,726.10/16,180.29 = 6,688.98/x
  3. Step 3: Cross multiply
    11,726.10x = 16,180.29 × 6,688.98
  4. Step 4: Simplify right side
    11,726.10x = 108,229,636.20
  5. Step 5: Solve for x
    x = 108,229,636.20/11,726.10
  6. Step 6: Final answer
    x = 9,229.81

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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.