Home / 13,515.06-20,272.59-4,747.92

Finding the Fourth Proportional to 13,515.06, 20,272.59 and 4,747.92

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Solution

The fourth proportional to 13,515.06, 20,272.59 and 4,747.92 is: 7,121.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.06 : 20,272.59 = 4,747.92 : x
  2. Step 2: Convert to fraction form
    13,515.06/20,272.59 = 4,747.92/x
  3. Step 3: Cross multiply
    13,515.06x = 20,272.59 × 4,747.92
  4. Step 4: Simplify right side
    13,515.06x = 96,252,635.51
  5. Step 5: Solve for x
    x = 96,252,635.51/13,515.06
  6. Step 6: Final answer
    x = 7,121.88

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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.