Home / 13,425.56-20,039.74-11,849.12

Finding the Fourth Proportional to 13,425.56, 20,039.74 and 11,849.12

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Solution

The fourth proportional to 13,425.56, 20,039.74 and 11,849.12 is: 17,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.56 : 20,039.74 = 11,849.12 : x
  2. Step 2: Convert to fraction form
    13,425.56/20,039.74 = 11,849.12/x
  3. Step 3: Cross multiply
    13,425.56x = 20,039.74 × 11,849.12
  4. Step 4: Simplify right side
    13,425.56x = 237,453,284.03
  5. Step 5: Solve for x
    x = 237,453,284.03/13,425.56
  6. Step 6: Final answer
    x = 17,686.66

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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.