Home / 10,684.41-14,749.79-8,145.69

Finding the Fourth Proportional to 10,684.41, 14,749.79 and 8,145.69

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Solution

The fourth proportional to 10,684.41, 14,749.79 and 8,145.69 is: 11,245.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,684.41 : 14,749.79 = 8,145.69 : x
  2. Step 2: Convert to fraction form
    10,684.41/14,749.79 = 8,145.69/x
  3. Step 3: Cross multiply
    10,684.41x = 14,749.79 × 8,145.69
  4. Step 4: Simplify right side
    10,684.41x = 120,147,176.18
  5. Step 5: Solve for x
    x = 120,147,176.18/10,684.41
  6. Step 6: Final answer
    x = 11,245.09

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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.