Home / 14,620.31-20,174.81-8,650.94

Finding the Fourth Proportional to 14,620.31, 20,174.81 and 8,650.94

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Solution

The fourth proportional to 14,620.31, 20,174.81 and 8,650.94 is: 11,937.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620.31 : 20,174.81 = 8,650.94 : x
  2. Step 2: Convert to fraction form
    14,620.31/20,174.81 = 8,650.94/x
  3. Step 3: Cross multiply
    14,620.31x = 20,174.81 × 8,650.94
  4. Step 4: Simplify right side
    14,620.31x = 174,530,926.69
  5. Step 5: Solve for x
    x = 174,530,926.69/14,620.31
  6. Step 6: Final answer
    x = 11,937.57

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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.