Home / 11,930.72-16,463.70-6,625.40

Finding the Fourth Proportional to 11,930.72, 16,463.70 and 6,625.40

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Solution

The fourth proportional to 11,930.72, 16,463.70 and 6,625.40 is: 9,142.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,930.72 : 16,463.70 = 6,625.40 : x
  2. Step 2: Convert to fraction form
    11,930.72/16,463.70 = 6,625.40/x
  3. Step 3: Cross multiply
    11,930.72x = 16,463.70 × 6,625.40
  4. Step 4: Simplify right side
    11,930.72x = 109,078,597.98
  5. Step 5: Solve for x
    x = 109,078,597.98/11,930.72
  6. Step 6: Final answer
    x = 9,142.67

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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.