Home / 13,751.45-20,623.86-6,348.79

Finding the Fourth Proportional to 13,751.45, 20,623.86 and 6,348.79

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Solution

The fourth proportional to 13,751.45, 20,623.86 and 6,348.79 is: 9,521.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.45 : 20,623.86 = 6,348.79 : x
  2. Step 2: Convert to fraction form
    13,751.45/20,623.86 = 6,348.79/x
  3. Step 3: Cross multiply
    13,751.45x = 20,623.86 × 6,348.79
  4. Step 4: Simplify right side
    13,751.45x = 130,936,556.13
  5. Step 5: Solve for x
    x = 130,936,556.13/13,751.45
  6. Step 6: Final answer
    x = 9,521.66

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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.