Home / 13,521.69-20,255.00-11,031.75

Finding the Fourth Proportional to 13,521.69, 20,255.00 and 11,031.75

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Solution

The fourth proportional to 13,521.69, 20,255.00 and 11,031.75 is: 16,525.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.69 : 20,255.00 = 11,031.75 : x
  2. Step 2: Convert to fraction form
    13,521.69/20,255.00 = 11,031.75/x
  3. Step 3: Cross multiply
    13,521.69x = 20,255.00 × 11,031.75
  4. Step 4: Simplify right side
    13,521.69x = 223,448,041.09
  5. Step 5: Solve for x
    x = 223,448,041.09/13,521.69
  6. Step 6: Final answer
    x = 16,525.16

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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.