Home / 13,012.32-17,958.96-7,425.12

Finding the Fourth Proportional to 13,012.32, 17,958.96 and 7,425.12

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Solution

The fourth proportional to 13,012.32, 17,958.96 and 7,425.12 is: 10,247.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.32 : 17,958.96 = 7,425.12 : x
  2. Step 2: Convert to fraction form
    13,012.32/17,958.96 = 7,425.12/x
  3. Step 3: Cross multiply
    13,012.32x = 17,958.96 × 7,425.12
  4. Step 4: Simplify right side
    13,012.32x = 133,347,433.08
  5. Step 5: Solve for x
    x = 133,347,433.08/13,012.32
  6. Step 6: Final answer
    x = 10,247.78

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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.