Home / 13,621.37-20,334.85-11,527.31

Finding the Fourth Proportional to 13,621.37, 20,334.85 and 11,527.31

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Solution

The fourth proportional to 13,621.37, 20,334.85 and 11,527.31 is: 17,208.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.37 : 20,334.85 = 11,527.31 : x
  2. Step 2: Convert to fraction form
    13,621.37/20,334.85 = 11,527.31/x
  3. Step 3: Cross multiply
    13,621.37x = 20,334.85 × 11,527.31
  4. Step 4: Simplify right side
    13,621.37x = 234,406,141.77
  5. Step 5: Solve for x
    x = 234,406,141.77/13,621.37
  6. Step 6: Final answer
    x = 17,208.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.