Home / 18,741.21-25,877.76-11,581.53

Finding the Fourth Proportional to 18,741.21, 25,877.76 and 11,581.53

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Solution

The fourth proportional to 18,741.21, 25,877.76 and 11,581.53 is: 15,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.21 : 25,877.76 = 11,581.53 : x
  2. Step 2: Convert to fraction form
    18,741.21/25,877.76 = 11,581.53/x
  3. Step 3: Cross multiply
    18,741.21x = 25,877.76 × 11,581.53
  4. Step 4: Simplify right side
    18,741.21x = 299,704,053.77
  5. Step 5: Solve for x
    x = 299,704,053.77/18,741.21
  6. Step 6: Final answer
    x = 15,991.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.