Home / 11,820.48-17,729.04-4,423.92

Finding the Fourth Proportional to 11,820.48, 17,729.04 and 4,423.92

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Solution

The fourth proportional to 11,820.48, 17,729.04 and 4,423.92 is: 6,635.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.48 : 17,729.04 = 4,423.92 : x
  2. Step 2: Convert to fraction form
    11,820.48/17,729.04 = 4,423.92/x
  3. Step 3: Cross multiply
    11,820.48x = 17,729.04 × 4,423.92
  4. Step 4: Simplify right side
    11,820.48x = 78,431,854.64
  5. Step 5: Solve for x
    x = 78,431,854.64/11,820.48
  6. Step 6: Final answer
    x = 6,635.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.