Home / 13,703.36-20,556.28-5,382.80

Finding the Fourth Proportional to 13,703.36, 20,556.28 and 5,382.80

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Solution

The fourth proportional to 13,703.36, 20,556.28 and 5,382.80 is: 8,074.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.36 : 20,556.28 = 5,382.80 : x
  2. Step 2: Convert to fraction form
    13,703.36/20,556.28 = 5,382.80/x
  3. Step 3: Cross multiply
    13,703.36x = 20,556.28 × 5,382.80
  4. Step 4: Simplify right side
    13,703.36x = 110,650,343.98
  5. Step 5: Solve for x
    x = 110,650,343.98/13,703.36
  6. Step 6: Final answer
    x = 8,074.69

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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.