Home / 13,704.09-18,911.64-7,416.46

Finding the Fourth Proportional to 13,704.09, 18,911.64 and 7,416.46

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Solution

The fourth proportional to 13,704.09, 18,911.64 and 7,416.46 is: 10,234.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.09 : 18,911.64 = 7,416.46 : x
  2. Step 2: Convert to fraction form
    13,704.09/18,911.64 = 7,416.46/x
  3. Step 3: Cross multiply
    13,704.09x = 18,911.64 × 7,416.46
  4. Step 4: Simplify right side
    13,704.09x = 140,257,445.23
  5. Step 5: Solve for x
    x = 140,257,445.23/13,704.09
  6. Step 6: Final answer
    x = 10,234.72

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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.