Home / 13,525.05-20,288.31-4,171.51

Finding the Fourth Proportional to 13,525.05, 20,288.31 and 4,171.51

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Solution

The fourth proportional to 13,525.05, 20,288.31 and 4,171.51 is: 6,257.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.05 : 20,288.31 = 4,171.51 : x
  2. Step 2: Convert to fraction form
    13,525.05/20,288.31 = 4,171.51/x
  3. Step 3: Cross multiply
    13,525.05x = 20,288.31 × 4,171.51
  4. Step 4: Simplify right side
    13,525.05x = 84,632,888.05
  5. Step 5: Solve for x
    x = 84,632,888.05/13,525.05
  6. Step 6: Final answer
    x = 6,257.49

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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.