Home / 12,867.91-17,755.41-7,563.79

Finding the Fourth Proportional to 12,867.91, 17,755.41 and 7,563.79

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Solution

The fourth proportional to 12,867.91, 17,755.41 and 7,563.79 is: 10,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867.91 : 17,755.41 = 7,563.79 : x
  2. Step 2: Convert to fraction form
    12,867.91/17,755.41 = 7,563.79/x
  3. Step 3: Cross multiply
    12,867.91x = 17,755.41 × 7,563.79
  4. Step 4: Simplify right side
    12,867.91x = 134,298,192.60
  5. Step 5: Solve for x
    x = 134,298,192.60/12,867.91
  6. Step 6: Final answer
    x = 10,436.67

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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.