Home / 18,531.52-25,576.86-11,811.76

Finding the Fourth Proportional to 18,531.52, 25,576.86 and 11,811.76

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Solution

The fourth proportional to 18,531.52, 25,576.86 and 11,811.76 is: 16,302.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531.52 : 25,576.86 = 11,811.76 : x
  2. Step 2: Convert to fraction form
    18,531.52/25,576.86 = 11,811.76/x
  3. Step 3: Cross multiply
    18,531.52x = 25,576.86 × 11,811.76
  4. Step 4: Simplify right side
    18,531.52x = 302,107,712.23
  5. Step 5: Solve for x
    x = 302,107,712.23/18,531.52
  6. Step 6: Final answer
    x = 16,302.37

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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.