Home / 11,687.40-17,525.70-5,110.20

Finding the Fourth Proportional to 11,687.40, 17,525.70 and 5,110.20

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Solution

The fourth proportional to 11,687.40, 17,525.70 and 5,110.20 is: 7,662.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,687.40 : 17,525.70 = 5,110.20 : x
  2. Step 2: Convert to fraction form
    11,687.40/17,525.70 = 5,110.20/x
  3. Step 3: Cross multiply
    11,687.40x = 17,525.70 × 5,110.20
  4. Step 4: Simplify right side
    11,687.40x = 89,559,832.14
  5. Step 5: Solve for x
    x = 89,559,832.14/11,687.40
  6. Step 6: Final answer
    x = 7,662.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.