Home / 11,729.03-16,186.03-6,423.80

Finding the Fourth Proportional to 11,729.03, 16,186.03 and 6,423.80

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Solution

The fourth proportional to 11,729.03, 16,186.03 and 6,423.80 is: 8,864.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.03 : 16,186.03 = 6,423.80 : x
  2. Step 2: Convert to fraction form
    11,729.03/16,186.03 = 6,423.80/x
  3. Step 3: Cross multiply
    11,729.03x = 16,186.03 × 6,423.80
  4. Step 4: Simplify right side
    11,729.03x = 103,975,722.52
  5. Step 5: Solve for x
    x = 103,975,722.52/11,729.03
  6. Step 6: Final answer
    x = 8,864.82

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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.