Home / 13,028.88-17,960.96-8,544.86

Finding the Fourth Proportional to 13,028.88, 17,960.96 and 8,544.86

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Solution

The fourth proportional to 13,028.88, 17,960.96 and 8,544.86 is: 11,779.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,028.88 : 17,960.96 = 8,544.86 : x
  2. Step 2: Convert to fraction form
    13,028.88/17,960.96 = 8,544.86/x
  3. Step 3: Cross multiply
    13,028.88x = 17,960.96 × 8,544.86
  4. Step 4: Simplify right side
    13,028.88x = 153,473,756.14
  5. Step 5: Solve for x
    x = 153,473,756.14/13,028.88
  6. Step 6: Final answer
    x = 11,779.50

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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.