Home / 14,382.11-19,847.46-8,412.61

Finding the Fourth Proportional to 14,382.11, 19,847.46 and 8,412.61

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Solution

The fourth proportional to 14,382.11, 19,847.46 and 8,412.61 is: 11,609.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,382.11 : 19,847.46 = 8,412.61 : x
  2. Step 2: Convert to fraction form
    14,382.11/19,847.46 = 8,412.61/x
  3. Step 3: Cross multiply
    14,382.11x = 19,847.46 × 8,412.61
  4. Step 4: Simplify right side
    14,382.11x = 166,968,888.63
  5. Step 5: Solve for x
    x = 166,968,888.63/14,382.11
  6. Step 6: Final answer
    x = 11,609.49

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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.