Home / 13,015.09-19,525.20-4,247.65

Finding the Fourth Proportional to 13,015.09, 19,525.20 and 4,247.65

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Solution

The fourth proportional to 13,015.09, 19,525.20 and 4,247.65 is: 6,372.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.09 : 19,525.20 = 4,247.65 : x
  2. Step 2: Convert to fraction form
    13,015.09/19,525.20 = 4,247.65/x
  3. Step 3: Cross multiply
    13,015.09x = 19,525.20 × 4,247.65
  4. Step 4: Simplify right side
    13,015.09x = 82,936,215.78
  5. Step 5: Solve for x
    x = 82,936,215.78/13,015.09
  6. Step 6: Final answer
    x = 6,372.31

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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.