Home / 13,639.33-20,449.88-11,010.07

Finding the Fourth Proportional to 13,639.33, 20,449.88 and 11,010.07

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Solution

The fourth proportional to 13,639.33, 20,449.88 and 11,010.07 is: 16,507.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639.33 : 20,449.88 = 11,010.07 : x
  2. Step 2: Convert to fraction form
    13,639.33/20,449.88 = 11,010.07/x
  3. Step 3: Cross multiply
    13,639.33x = 20,449.88 × 11,010.07
  4. Step 4: Simplify right side
    13,639.33x = 225,154,452.99
  5. Step 5: Solve for x
    x = 225,154,452.99/13,639.33
  6. Step 6: Final answer
    x = 16,507.74

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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.