Home / 14,451.21-19,942.25-8,077.81

Finding the Fourth Proportional to 14,451.21, 19,942.25 and 8,077.81

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Solution

The fourth proportional to 14,451.21, 19,942.25 and 8,077.81 is: 11,147.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,451.21 : 19,942.25 = 8,077.81 : x
  2. Step 2: Convert to fraction form
    14,451.21/19,942.25 = 8,077.81/x
  3. Step 3: Cross multiply
    14,451.21x = 19,942.25 × 8,077.81
  4. Step 4: Simplify right side
    14,451.21x = 161,089,783.19
  5. Step 5: Solve for x
    x = 161,089,783.19/14,451.21
  6. Step 6: Final answer
    x = 11,147.15

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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.