Home / 14,785.12-20,400.42-8,496.28

Finding the Fourth Proportional to 14,785.12, 20,400.42 and 8,496.28

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Solution

The fourth proportional to 14,785.12, 20,400.42 and 8,496.28 is: 11,723.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.12 : 20,400.42 = 8,496.28 : x
  2. Step 2: Convert to fraction form
    14,785.12/20,400.42 = 8,496.28/x
  3. Step 3: Cross multiply
    14,785.12x = 20,400.42 × 8,496.28
  4. Step 4: Simplify right side
    14,785.12x = 173,327,680.44
  5. Step 5: Solve for x
    x = 173,327,680.44/14,785.12
  6. Step 6: Final answer
    x = 11,723.12

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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.