Home / 11,729.13-16,185.60-6,423.63

Finding the Fourth Proportional to 11,729.13, 16,185.60 and 6,423.63

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Solution

The fourth proportional to 11,729.13, 16,185.60 and 6,423.63 is: 8,864.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.13 : 16,185.60 = 6,423.63 : x
  2. Step 2: Convert to fraction form
    11,729.13/16,185.60 = 6,423.63/x
  3. Step 3: Cross multiply
    11,729.13x = 16,185.60 × 6,423.63
  4. Step 4: Simplify right side
    11,729.13x = 103,970,305.73
  5. Step 5: Solve for x
    x = 103,970,305.73/11,729.13
  6. Step 6: Final answer
    x = 8,864.28

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Half scale
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Double scale
Find fourth proportional to 11,730.13, 16,186.98 and 6,424.63
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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.