Home / 12,311.26-16,989.53-7,277.30

Finding the Fourth Proportional to 12,311.26, 16,989.53 and 7,277.30

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Solution

The fourth proportional to 12,311.26, 16,989.53 and 7,277.30 is: 10,042.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311.26 : 16,989.53 = 7,277.30 : x
  2. Step 2: Convert to fraction form
    12,311.26/16,989.53 = 7,277.30/x
  3. Step 3: Cross multiply
    12,311.26x = 16,989.53 × 7,277.30
  4. Step 4: Simplify right side
    12,311.26x = 123,637,906.67
  5. Step 5: Solve for x
    x = 123,637,906.67/12,311.26
  6. Step 6: Final answer
    x = 10,042.67

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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.