Home / 13,955.09-20,895.37-11,740.75

Finding the Fourth Proportional to 13,955.09, 20,895.37 and 11,740.75

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Solution

The fourth proportional to 13,955.09, 20,895.37 and 11,740.75 is: 17,579.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.09 : 20,895.37 = 11,740.75 : x
  2. Step 2: Convert to fraction form
    13,955.09/20,895.37 = 11,740.75/x
  3. Step 3: Cross multiply
    13,955.09x = 20,895.37 × 11,740.75
  4. Step 4: Simplify right side
    13,955.09x = 245,327,233.74
  5. Step 5: Solve for x
    x = 245,327,233.74/13,955.09
  6. Step 6: Final answer
    x = 17,579.77

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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.