Home / 11,747.25-16,209.72-6,440.67

Finding the Fourth Proportional to 11,747.25, 16,209.72 and 6,440.67

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Solution

The fourth proportional to 11,747.25, 16,209.72 and 6,440.67 is: 8,887.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.25 : 16,209.72 = 6,440.67 : x
  2. Step 2: Convert to fraction form
    11,747.25/16,209.72 = 6,440.67/x
  3. Step 3: Cross multiply
    11,747.25x = 16,209.72 × 6,440.67
  4. Step 4: Simplify right side
    11,747.25x = 104,401,425.11
  5. Step 5: Solve for x
    x = 104,401,425.11/11,747.25
  6. Step 6: Final answer
    x = 8,887.31

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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.