Home / 18,488.14-25,516.50-11,776.72

Finding the Fourth Proportional to 18,488.14, 25,516.50 and 11,776.72

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Solution

The fourth proportional to 18,488.14, 25,516.50 and 11,776.72 is: 16,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.14 : 25,516.50 = 11,776.72 : x
  2. Step 2: Convert to fraction form
    18,488.14/25,516.50 = 11,776.72/x
  3. Step 3: Cross multiply
    18,488.14x = 25,516.50 × 11,776.72
  4. Step 4: Simplify right side
    18,488.14x = 300,500,675.88
  5. Step 5: Solve for x
    x = 300,500,675.88/18,488.14
  6. Step 6: Final answer
    x = 16,253.70

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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.