Home / 13,322.16-20,005.92-12,764.88

Finding the Fourth Proportional to 13,322.16, 20,005.92 and 12,764.88

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Solution

The fourth proportional to 13,322.16, 20,005.92 and 12,764.88 is: 19,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.16 : 20,005.92 = 12,764.88 : x
  2. Step 2: Convert to fraction form
    13,322.16/20,005.92 = 12,764.88/x
  3. Step 3: Cross multiply
    13,322.16x = 20,005.92 × 12,764.88
  4. Step 4: Simplify right side
    13,322.16x = 255,373,168.09
  5. Step 5: Solve for x
    x = 255,373,168.09/13,322.16
  6. Step 6: Final answer
    x = 19,169.05

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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.