Home / 11,554.56-15,945-6,450.12

Finding the Fourth Proportional to 11,554.56, 15,945 and 6,450.12

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Solution

The fourth proportional to 11,554.56, 15,945 and 6,450.12 is: 8,901.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,554.56 : 15,945 = 6,450.12 : x
  2. Step 2: Convert to fraction form
    11,554.56/15,945 = 6,450.12/x
  3. Step 3: Cross multiply
    11,554.56x = 15,945 × 6,450.12
  4. Step 4: Simplify right side
    11,554.56x = 102,847,163.40
  5. Step 5: Solve for x
    x = 102,847,163.40/11,554.56
  6. Step 6: Final answer
    x = 8,901.00

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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.