Home / 13,704.07-18,911.69-7,416.45

Finding the Fourth Proportional to 13,704.07, 18,911.69 and 7,416.45

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Solution

The fourth proportional to 13,704.07, 18,911.69 and 7,416.45 is: 10,234.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.07 : 18,911.69 = 7,416.45 : x
  2. Step 2: Convert to fraction form
    13,704.07/18,911.69 = 7,416.45/x
  3. Step 3: Cross multiply
    13,704.07x = 18,911.69 × 7,416.45
  4. Step 4: Simplify right side
    13,704.07x = 140,257,577.86
  5. Step 5: Solve for x
    x = 140,257,577.86/13,704.07
  6. Step 6: Final answer
    x = 10,234.74

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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.