Home / 14,723.91-20,319.39-8,758.80

Finding the Fourth Proportional to 14,723.91, 20,319.39 and 8,758.80

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Solution

The fourth proportional to 14,723.91, 20,319.39 and 8,758.80 is: 12,087.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,723.91 : 20,319.39 = 8,758.80 : x
  2. Step 2: Convert to fraction form
    14,723.91/20,319.39 = 8,758.80/x
  3. Step 3: Cross multiply
    14,723.91x = 20,319.39 × 8,758.80
  4. Step 4: Simplify right side
    14,723.91x = 177,973,473.13
  5. Step 5: Solve for x
    x = 177,973,473.13/14,723.91
  6. Step 6: Final answer
    x = 12,087.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.